You Can Prevent Being Seasick While Scuba Diving

Rok Valencic

Apparently, every third person is highly susceptible to motion sickness (seasickness is motion sickness). The important thing is that you can prevent being seasick while scuba diving. The question is only, which remedy will work best for you?

How each person responds to a seasickness prevention method varies so widely that what works for me might not even come close to helping you.

Luckily, experience shows that anyone can find something that works, and I have collected virtually all possible methods, techniques, advice, tools, and medication that can be found. The tough part will be figuring out what will work best for you.

Let’s start from the beginning.

Understand What Triggers Seasickness So You Can Prevent it When Scuba Diving

It’s all about a classic case of sensory confusion. Your brain is constantly trying to make sense of the signals it receives from your body. When you’re on solid ground, everything’s in place. Your eyes, inner ears, and body movements all sing harmoniously in tune.

But when you’re out at sea, things get all over the place. Your eyes see the boat as relatively still, indicating stability, while your inner ears sense motion as the waves toss you around. Your brain’s getting mixed messages this way.

This sensory dissonance sets off a chain reaction in your body. Your brain, in a panic to resolve the conflict, triggers your autonomic nervous system – the part responsible for all the automatic stuff like heart rate and digestion. This leads to a handful of delightful symptoms that make your boat trip miserable: nausea, dizziness, sweating – the whole shebang!

Why Do We Have This “Defense” Mechanism?
It’s actually a survival mechanism. Back in our cave-dwelling days, when humans were nomadic hunter-gatherers, this mismatched sensory input helped us detect potential dangers like toxins or spoiled food. So, in a weird way, seasickness is your body’s ancient alarm system gone haywire in the modern world of boats and cruises.

This is similar to why passengers in the back seat of the car get sick more often: they don’t look out the front windshield, and their eyes aren’t following the motion of the car.

Methods to Prevent Seasickness

There are some general tips that always help to some extent because they directly target the mixed sensory messages or your stomach’s susceptibility to agitation. I talk about them all in the next section, where I go over the step-by-step preparation for your dive trip to avoid motion sickness.

I suggest you stick to as many of them as you can, mostly because you have nothing to lose, there are no side effects, and they should help at least a little bit, depending on the severity of your motion sickness.

In this section, I collected all medical and non-medical methods available, so you can choose whichever you prefer, according to your health, beliefs, or personal preference.

The major difference is that medication is stronger and needs to be taken ahead of time. If you already feel sick, no medication will help because it takes too long to enter the system and start functioning:

  1. Non-prescription medication:
  2. Prescription medication:

On the other hand, non-medical methods are used more to alleviate symptoms as they arise but have ‘less power’ in terms of how strongly they counteract the sickness:

  1. Ginger
  2. Mint
  3. Vitamin C
  4. Green apple
  5. Licorice
  6. Head tipping
  7. Pressing on P6
  8. Ice water bucket
  9. Ice cubes
  10. Alcohol wipes

Non-Prescription Medication

Any medication can have side effects, which can affect your ability to scuba dive safely. Always consult your doctor if it’s safe to take in your case, especially if you have any other underlying condition.

As I’m not a doctor or anything resembling one, don’t take my words as medical advice! I have only gathered the experience of hundreds of divers here to provide you with as many options as possible in the hope you’ll find what works best for you.

Always try the medication on a day when you don’t have to do any strenuous work, drive, dive, or do anything that requires your wits intact. This way, you will know how it affects you before you step on a boat geared up for diving.

Forum comment on drowsy effect of motion sickness medication


Antihistamines can help with motion sickness by blocking the action of histamine, a chemical in the body that plays a key role in triggering nausea and vomiting.

Histamine acts on certain receptors in the brain and stomach, causing symptoms like nausea, vomiting, and dizziness. Antihistamines work by binding to these receptors, preventing histamine from exerting its effects.

  • Dimenhydrinate: sold as Dramamine (Gravol in Canada). This one is one of the most popular options among many divers. It’s a combination of diphenhydramine (Benadryl) and 8-chlorotheophylline, a stimulant like caffeine.
  • Meclizine: sold as Dramamine Less-Drowsy, Bonine, Antivert, Meni-D, or Antrizine,
  • Diphenhydramine: sold as Benadryl,
  • Cyclizine: sold as Marezine,
  • Cinnarizine: sold as Stugeron
Dramamine box

These all come with the side effect of drowsiness, that’s why it’s good to test them before scuba diving off a boat.

They can work great for mildly sick, even some heavily sick divers said they worked wonders for them.

Take one the night before the dive and another at least an hour prior to the dive.


This is oral Hyoscine Hydrobromide (it belongs in the Scopolamine family) and works by blocking certain receptors in the brain known as muscarinic receptors.

These receptors are involved in regulating the activity of the nervous system, including the part that controls nausea and vomiting.

Kwells box

Quite a few divers found these to be all they needed. The only side effect is that they can be dehydrating. But if you stay well hydrated, you shouldn’t have a problem.

Another challenge is that they’re not readily available in the US but can be ordered through eBay from Australia or the UK very cheaply.

Take one at breakfast on the day of the dive or at least 30 minutes before diving.

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Prescription Medication

Most of the prescription medication used for treating motion sickness falls under the Scopolamine family (or Hyoscine Hydrobromide). Basically, this is Kwells on steroids.


The most commonly used are Scopolamine patches (sold as Transderm Scop), but you can also get oral scopolamine (sold as Scopace and Maldemar).

A box of scopolamine patches

While these have a higher likelihood of helping if you’re severely prone to motion sickness, they also come with more side effects. The most common are dry mouth and blurred vision. The more severe can be hallucinations, confusion, agitation, and disorientation.

Pro Tip
They tend to fall off sooner than they should, so secure them with additional medical tape or liquid band-aid. Tape them on the night before (12-16 hours before or up to 24 hours if the conditions are predicted to be rough). Wash your hands after applying it; you don’t want to get any in your eyes!

If you’re using these for a one-day boat trip only, then I suggest you remove them once the trip is over. Some divers have reported worse side effects if they left them on for a full three days.

But then again, in some cases, you don’t have any other choice. That’s why you should always test any medication before actually going on a dive boat.


Another less commonly prescribed medication is Promethazine (sold as Phenergan).

As an antihistamine, it can be very effective but also very sedative-hypnotic.


I have to admit, I was a little hesitant to put this one on the list, but I promised everything, so here it is.

Ondansetron (sold as Zofran) is NOT approved for motion sickness, but some people have tried it anyway and reported good results. Although the FDA approved it for nausea related to chemotherapy or after general anesthesia, it wasn’t approved for motion sickness.

By blocking serotonin receptors, ondansetron helps to prevent the signals that trigger nausea from being transmitted to the brain. This can provide relief for patients undergoing treatments or procedures that commonly cause these symptoms.

It can have some very serious side effects, like severe constipation, cardiac complications, and neurological issues.

Non-Medical Methods

If you don’t want to take medication for whatever reason, there are quite a lot of other methods that some divers swear by.

While you can find some logical connection between some of these methods and the underlying triggers of motion sickness, some methods seem completely random.

But you never know what will work for you, and at least you’ve got nothing to lose if you try these out. Well, you might lose your breakfast if they don’t work (sorry).

On the other hand, if you already know that you have severe motion sickness (soaked in sweat, broken blood vessels in your eyes), these probably won’t be enough for you, even if you see them working to some extent.


Ginger is most commonly used among non-medical methods.

It has been used for centuries as a natural remedy for various digestive issues, including nausea and motion sickness. It contains bioactive compounds such as gingerol and shogaol, which are believed to have anti-inflammatory and anti-nausea effects.

The best part is that it is cheap, easy to find, and it comes in all shapes and sizes:

A pack of ginger candy
  • candy,
  • ale,
  • ginger tea,
  • biscuits,
  • non-alcoholic beer,
  • or just fresh ginger (chew it or put it in a bottle of water).
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Some divers use mint in a similar way you would use ginger.

Mint is known for its soothing properties. It has been traditionally used to aid digestion and relieve indigestion, and it contains menthol, which has been shown to have anti-nausea effects.

It also comes in various forms, like mint lozenges, peppermint candy, mint leaves soaked in water, etc., which also makes it handy. But it’s not as often recommended as ginger, so I suggest starting with that instead.

Mint also isn’t my preferred method because I hate the taste or smell of mint when I’m feeling sick. I feel like I’m going to throw up just by getting some of it in my mouth.


Vitamin C is known to have antihistamine properties, affecting your body in a similar way to the antihistamine medication I mentioned at the beginning, but in a much, much less profound way (obviously).

Rare divers recommend this as their go-to solution, so I would keep this on the side. If you have Vitamin C in powder or some other form that you can put in water, however, then you have nothing to lose if you drop some into your water bottle. It will taste bitter, though.


While I haven’t met anyone who would swear by green apple, I’ve heard of people using it to alleviate motion sickness symptoms.

The pectin in the apples can help soothe the stomach. On the other hand, the acid in apples can irritate the stomach lining if you have a sensitive stomach. So, it’s a double-edged sword.


Licorice, specifically deglycyrrhizinated licorice (try saying that five times fast), has been traditionally used as a natural remedy for various digestive issues, including indigestion, heartburn, and stomach ulcers.

Deglycyrrhizinated licorice

Licorice contains compounds with anti-inflammatory properties that may help soothe the digestive tract and reduce inflammation. It is also believed to have demulcent properties, meaning it forms a soothing, protective coating over irritated tissues.

This may help reduce irritation and provide relief from symptoms such as nausea, bloating, and stomach pain associated with motion sickness.

Eating large amounts of licorice can cause side effects such as high blood pressure and low potassium levels. That’s why the degly-someting licorice is better because it doesn’t have glycyrrhizin, the compound responsible for these side effects. You can easily find it on Amazon.


The idea here is to replace the mismatched information coming from your eyes and middle ear with complete chaos.

Tipping your head to the side while standing up isn’t something we often do, which could result in your brain trying to figure out what is happening instead of focusing on incompatible sensory information.

To be honest, I’m the most skeptical about this one because even if it does work, our brain is wired to adapt quickly, meaning it’s only a matter of time before it figures out what is going on and realizes it’s still getting mixed sensory inputs.


Applying pressure to the Nei-Kuan (P6) pressure point, which is located on the inside of the wrist, about two or three finger widths below the wrist crease, is a common acupressure technique used to alleviate nausea and vomiting.

This is believed to stimulate the body’s natural healing processes and promote balance within the body’s energy pathways, known as meridians, in traditional Chinese medicine.

You can do this either by hand or use acupressure bands that have a small plastic or rubber nub sticking out that you center on the P6 point. You can get all sorts of stylish bands from Amazon.

P6 acupressure bands

You can even find electronic bands that send electric impulses to stimulate the meridian nerve on your wrist.


Before you laugh and call me crazy, hear me out. Because of all non-medicinal methods, although impractical, this one makes the most sense to me.

When someone throws ice water over you, it shocks your body. The body goes into the ‘fight or flight’ response, meaning it immediately discards everything it’s working on, including feeling nauseous, and focuses on adapting the body to the sudden cold.

My Experience
Although I have used different methods to shock my body (that I would rather keep to myself because they were stupid and unsafe), shocking me has helped me every single time I felt sick. It’s like someone simply cut the sick feeling away. But it’s also fair to point out that I’m not someone with severe motion sickness.

Now, I’m not swearing by this method or calling it the best because it has many downsides as well.

More often than not, you don’t have a bucket of ice water with you. Also, this isn’t appropriate for all people and all seasons. If you have certain medical conditions or vulnerabilities, or it’s very cold and windy, this obviously isn’t a good idea.

Another thing is that the state of shock doesn’t last. If you have a long boat ride, this would, at best, be a temporary solution.


This is a similar but milder version of the ice bucket method.

The cooling sensation and the stimulation of nerves in your neck distract your brain from feeling sick and help your body relax.

An even milder version is sucking on ice cubes.

Although more convenient than having a full bucket of ice water, small boats might not have ice anything.


The idea is to provide a strong smell that stimulates the nerves in your nasal cavity and creates a sensory distraction stronger than the one causing motion sickness.

Needless to say, if you have a heavy case of motion sickness, you can cram a whole pack of alcohol wipes into your nose, and it won’t be enough.

What Can You Do to Prevent Motion Sickness before Going Scuba Diving

The most important thing to keep in mind is that you can do the most in terms of seasickness prevention before you head out to scuba dive.

And I don’t mean when you’re on the pier assembling gear; that’s way too late. The preparation starts the day before (or even earlier). So that’s where I’ll begin.

The Day before the Dive Trip

You’re here to find a solution to your queasiness regardless of weather and location, so I’m going to spare you with advice like ‘avoid trips when the waves are higher,’ or ‘choose dive sites closer to the shore,’ or ‘choose a wider boat.’

1. Avoid drinking alcohol, coffee, or smoke cigarettes. Alcohol affects your inner ear’s ability to detect motion accurately, adding more confusion to the sensory mix-up already happening onboard.

Caffeine revs up your nervous system, making it more sensitive to those mixed signals from your inner ear and eyes.

Lastly, smoking constricts your blood vessels, including those in your inner ear, which can mess with your equilibrium even more. Plus, the toxins in cigarettes can make you feel queasy on their own.

2. Avoid eating heavy meals and stay away from acidic fruit. Don’t overeat. Greasy foods take longer to digest and can sit heavily in the stomach, potentially causing discomfort and nausea. Greasy foods may also trigger acid reflux, further irritating the stomach lining and worsening symptoms.

Acidic fruits, such as oranges or grapefruits, can irritate the stomach lining and increase acidity. I have never had problems with these, but some people specifically point out pineapple as being the worst in this case.

3. Stay hydrated. This one shouldn’t require an explanation. Our body is made to function best when well hydrated. That includes processing nervous stimuli and everything else that needs to function properly so as not to become sick.

4. Get enough sleep. At least 7-8 hours. When you’re tired, your body and brain are already dealing with a lack of energy and proper functioning.

5. If you decide to go with any medication, this is the time to take it. Most medication takes some time to get into the system and function properly. Taking it on the morning of the dive is already a little late.

6. Similarly, if you decide to rely on natural remedies like water infusions, prepare them beforehand so the ingredients have enough time to infuse your drink.

7. Pack electrolytes and enough water to drink. This is to stay hydrated and, in case you throw up, to replenish your body with what it’s lost. You don’t want to dive dehydrated.

The Morning of the Dive

1. If you chose medication, take it as soon as you wake up or with breakfast. Obviously, this isn’t necessary for things like the Scopolamine patch, if you already have it on from yesterday.

2. Don’t go on the boat on an empty stomach. This one is very important! An empty stomach is much more irritable than a full one. Just stay away from greasy and acidic foods, and don’t overstuff yourself. Staying away from alcohol, coffee, and cigarettes still applies.

3. Hydrate regularly. If you choose to infuse your water with ginger or anything else, make sure you have enough left for the trip. Drink regularly throughout the day. Try to stay away from sugary beverages. Water or sports drinks are fine.

4. Get to the boat early. This will allow you to choose the best seat where you will feel the least ‘bouncy’ (I’ll talk about this in a moment), prep your gear in time, and

5. Use the toilet on land to avoid using the head (marine toilet). Trust me, you don’t want to use the head. That’s where you’ll feel the waves a lot more and have no useful reference for your eyes not to send conflicting messages to your brain.

6. Assemble your dive gear on land before going on the boat. Assembling the gear on the boat requires you to look down, which can be terrible if you’re prone to feeling sick. If nothing else, have your swimwear on already!

This means connecting your BCD to the tank, connecting the second stage, and testing all regulators. Prepare the fins, mask, your favorite dive computer, and all other accessories that you need so they are at hand, and you can put them on with your eyes closed if necessary.

If the ride is short, consider putting the wetsuit on completely. This takes the most time, meaning it can make you the most sick if you do it on the way. If the ride is long, consider at least putting the suit on halfway.

If you’re going to a dive site you’ve never been to before, chances are the crew will let you know to gear up as the boat is already slowing down and circling the dive spot, sending its engine fumes everywhere, making the excellent concoction for your seasickness to escalate horribly. And you need to get dressed in all that.

7. Tell the crew and your dive buddies. Tell them you’re prone to seasickness. They will understand. Often, someone will already have some experience with this and can help if needed along the way.

During the Dive Boat Ride

1. Find the center of the boat and stay there. Or as close to the center as possible. That’s because you will feel the effect of the waves the least there. Upper or lower decks are a no-go.

2. Keep your eyes on the horizon. The idea is to find a spot on the horizon (ideally, the line where the boat ends and the horizon begins) where what you see is the same as what your inner ear feels and sends to your brain.

Avoid looking down, at your gear, at yourself, or at someone else. If you feel okay talking to people, do it, but try to watch the horizon. You might look a bit autistic, but just quickly let them know why that is, then change the subject.

Needless to say, reading or using your phone is the last thing you want to do.

Also, face the direction the boat is moving in. What you see in that direction will be as close to what your ear feels as you can get.

If This Doesn’t Help
Sometimes, closing your eyes helps. Or even lying down and closing your eyes. Closing your eyes removes one part of the conflicting information your brain receives. But this doesn’t work for everybody. If you decide to give this a try, focus on something that will keep your mind away from how you feel. Dwelling on feeling sick will make it a fact for your brain, and you won’t get it away.

Some divers even suggest that you fall asleep during the boat ride (and between dives).

Obviously, this is extremely difficult if you’re already feeling unwell, if you’re a light sleeper, worried, anxious, or if some other tiny thing isn’t exactly right for you to fall asleep. So let’s save this for the iron-willed ones who are able to fall asleep even before the boat starts the engines.

3. Stay away from strong odors (like the boat’s diesel engine, cigarette smoke, and perfumes). They don’t sit well with your stomach. Sometimes, this means giving away your ideal spot on the boat, so choose the lesser evil.

On the other hand,

4. Breathe deep and keep your mind busy with something where you can keep your eyes on the horizon. This limits you quite a bit because there are few things you can do and keep your eyes on the horizon at the same time. Count your breaths. Do the Wim Hof breathing method. Recite songs.

Whatever you do, relax, get comfortable, and don’t dwell on being seasick. Focus on other things and stay away from anyone else who is feeling sick or talking about it.

A LOT of divers said that they are always sick when they are the passengers and never sick when they drive the boat. So this is saying a lot already. Obviously, you usually don’t have the option to drive the boat, but you get the point.

Forum comment about not focusing on the sick feeling

5. Stay cool. Avoid direct sunlight, wear a hat, drink cold drinks, and don’t overdress.

I know that this might be the opposite of what I said before to get into your wetsuit before the boat ride. But like most things, there isn’t a perfect solution here, and you will have to find what works best for you.

6. If you need to throw up anyway, signal the crew and go to one of the designated spots. That’s usually somewhere in the middle of the ship. DO NOT throw up against the wind! The wind will always beat you.

Avoid doing it in the head. It’s not well-ventilated, hot, and smells bad. You’ll make a mess and probably clog the thing. Trust me, stay away.

There’s no need to feel bad about being sick. You’re not the first one and definitely not the last. Better to let the crew know and stay on their good side than to do something impulsive on your own and make things worse.

7. Finish gearing up when the boat is still moving. Once the boat stops moving, the rocking usually gets worse, so it’s better to do it while on the way. Most boat dive crews will give a 15-minute warning when closing in on the dive site.

If you feel well enough, this is the time to zip up the wetsuit, put on the BCD, and get the accessories in order.

Take your time, and remember to keep your eyes on the horizon or keep them closed. This is challenging if you aren’t used to it, so a dive buddy is worth their weight in gold at times like this.

8. Get into the water as soon as possible. The conflicting information in your brain will end there, and the sick feeling should go away. Just inflate your BCD, relax, and wait for the others to join you.

This includes the time between dives – stay onboard as little as possible. There were cases where motion-sick divers hung on a rope by the side of the boat the entire time between dives. Which looks strange and doesn’t feel the most comfortable, but still beats being onboard and feeling sick.

Just in case, don’t forget to discuss hand signals or pre-arranged plans with your buddy for surfacing safely in case of seasickness.

What Can You Do Right before the Dive If You Get Sick in the Moment

Sadly, most motion sickness solutions take a while to start working, especially medication. If you get sick at the moment, you’re left with very few options, but not none.

If you’ve managed to get geared up and the sick feeling kicks in after that, just jump in the water and wait it out. Close your eyes, breathe deep, relax, and keep your mind occupied.

If you start feeling sick when still in your land-people clothes and too sick to gear up, take your shirt and pants off and jump in the water like that. Trust me, water is your friend here. Sometimes, it’s even easier to get into a wetsuit in the water, and your dive buddy can help you with the rest.

Even if you have to throw up at this point, it’s better to do it when in the water than on the boat. The fish will thank you and the crew as well.

Is It Safe to Dive despite Feeling Sick?

The sick feeling should go away as you enter the water. Just give yourself a little time and wait for it to wear off.

Technically, motion sickness doesn’t affect your ability to dive once you start feeling better.

But, if you’ve vomited, make sure you rehydrate yourself with water and some electrolytes. Vomiting makes you dehydrated, and that, in turn, increases your chances of decompression sickness.

In the worst-case scenario, if your symptoms don’t go away or take very long to lessen and the rest of the divers can’t afford to wait any longer, you might have to skip the dive. Not the best solution, but this will give you enough time to recover and get ready for the second dive.

What to Do If You Get Sick Underwater

Although rare, feeling ill underwater due to motion sickness or some remaining symptoms from the boat ride is possible.

If you’re very sensitive to motion, the sick feeling can return underwater, or underwater conditions like a surge can make you feel queasy.

The regulator can take all of it. The vomit will come out of the exhaust valve, and you can purge the rest. It’s not pleasant, it feels weird, but it’s safe.

Throwing up is often accompanied by sharp intakes of breath, and you don’t want to do that without your regulator.

Just a Heads-Up
There could be some vomit left over in the regulator as you take your first breath afterward. Or at least some ‘taste’ of it. That’s why purging is recommended. When you’re sure you won’t throw up anymore, switch to your alternate mouthpiece.

If you’re feeling weak after, or the feeling returns, think about ending the dive. Safety should always come first. Given that you can’t drink underwater, you’re already a bit dehydrated from vomiting. That, coupled with feeling weak, isn’t a good combination for scuba diving.

What to Do after Feeling Sick to Help Your Body Recover

When you’re back on the boat, the most important thing to do is stay hydrated and drink some electrolytes because you’ve lost plenty when throwing up.

Stay relaxed on the way back to land. If possible, leave the gear disassembly for when you land, or at least keep it to a minimum.

When you reach land, give your body enough rest, grab something to eat, and keep hydrating.

Does the Seasickness Ever Go Away Permanently?

For some people, motion sickness can improve or even resolve over time, but whether it goes away permanently varies from person to person.

Motion sickness is more common in children and young adults and may improve as you get older. This is because the inner ear structures responsible for balance and equilibrium mature over time, reducing susceptibility to motion sickness.

Gradual exposure to motion or activities that trigger motion sickness can sometimes desensitize the body and reduce the frequency or severity of symptoms over time. This process can help some divers become less sensitive to motion sickness triggers.

There have been divers who reported seasickness going away permanently. Although to be fair, these weren’t the ones with the most severe cases. Some have said that they got used to it somewhat, but smaller boats or rough seas still get to them.

There have been some tools developed to ‘train’ the body to better cope with motion sickness:

Getting Your VR Legs

Getting your VR legs is a term from the gaming industry that means getting used to the different sensory inputs from your ears when you’re standing still or moving differently than what your eyes see through the VR glasses.

VR headset

When the technology came out a few years ago, some people actually got sick from the strong mismatch of the information they got from their eyes and middle ear. It’s similar to what you experience on a boat, except that this time, you actually are still, and the eyes are given information that you’re moving.

The VR glasses were developed by Oculus (now owned by Meta) and start at $200.

While this hasn’t been proposed for treating or mitigating motion sickness, the core concept of why motion sickness occurs here or at sea is the same.

This is still a relatively new technology, and not many people own it, which might be another factor why not many have tried this to combat their seasickness.

But it could be a useful tool that might just work. At least to some extent. If nothing else, you get to have fun with your friends and family 🙂

Seetroën Glasses against Motion Sickness

These are some weird-looking glasses, developed by Citroen (yes, the car company) specifically for motion sickness.

Seetroen glasses by Citroen

They say: “Put them on as soon as the first symptoms occur (it can be worn over prescription glasses). Wear the glasses for 10 to 12 minutes so that your senses can resynchronise. Take the glasses off and enjoy your journey.

The glasses replicate the horizon, matching the input from your eyes to your inner ears.

To be honest, I haven’t tried them, have never met anyone who has, and there has been no independent evidence as to how well they work. They are around $150, and you can get the Seetroën glasses straight from Citroen.


I hope you find your solution in this exhaustive list of methods.

If you use or do something that I haven’t mentioned here, I’d love to hear about it!

I wish you a pleasant salty breeze, a calm stomach, and a swift goodbye to feeling seasick while scuba diving!

Rok Valencic

Rok Vale

I’m a sports enthusiast who enjoys spending as much time underwater as possible. Be that diving, snorkeling, swimming, or just falling off the surfboard. I’m a licensed PADI diver and a licensed fitness instructor. I also have a degree in physics to unnecessarily complicate my life.


Some divers get seasick while on a boat dive, either a short ride to the nearest dive spot or a liveaboard, due to the boat’s wavy motion. Motion sickness is very common, and its symptoms can vary greatly among divers.

Feeling sick when scuba diving can be a consequence of motion sickness left over from a boat ride, a consequence of an underwater surge, or it can be as simple as eating something bad in the morning.

Dramamine takes some time to get into your system and start working, so it’s best to take it the night before the dive and again in the morning of the dive. Make sure you consult with your doctor before using it and don’t use it the first time on your dive trip! It can make you very drowsy.

If you need to vomit while scuba diving, keep your regulator in your mouth and vomit straight through it. The exhaust valve will let most of it out, and you can clean any residue by purging the rest. Take your time, steady yourself, and wait until you feel better while breathing regularly.

Some tested and proven methods to prevent nausea when scuba diving are not diving on an empty stomach, keeping your eyes on the horizon when on a boat and staying to the center of the boat, staying away from exhaust fumes, and keeping your mind occupied.