How to prevent seasickness on a cruise
Cabin position, medication timing, ginger and fresh air: practical ways to stay comfortable at sea, especially on the first and last night.
Seasickness affects far fewer cruise passengers than people expect, and modern ships stabilise motion well. But if you are prone to motion sickness in cars or planes, a little preparation turns a worry into a non-issue. The key is to act before symptoms start, not after.
Why some people feel it and others don't
Motion sickness comes from a mismatch between what your eyes see and what your inner ear feels. Inside a ship, your eyes see a steady room while your body senses movement, and the brain reacts. That is why sitting where you can see the horizon often helps instantly, and why reading a phone below deck can make things worse.
Choose a cabin in the middle, low down
Where you sleep matters. Motion is greatest at the front and the back of the ship and up on high decks. The calmest cabins sit midship and low, close to the waterline and near the ship's centre of gravity. If you are sensitive, this is the single most useful booking decision you can make; our guide to choosing a cruise cabin explains how position affects comfort.
Start medication before symptoms
Most over-the-counter motion-sickness tablets work best when taken before you feel unwell, often an hour or two ahead. Once nausea sets in, the same tablet is much less effective. Talk to a pharmacist about which option suits you, and note that many cause drowsiness and interact with alcohol.
If you know you are prone to motion sickness, take your chosen remedy before the ship sails, not when you first feel queasy.
Non-drug options that help
- Ginger — in tea, chews or capsules; a gentle, drug-free option for mild cases.
- Acupressure bands — worn on the wrist, popular and side-effect free, though evidence is mixed.
- Fresh air — step outside, face the wind and find the horizon.
- Green apples and dry crackers — a traditional, soothing snack.
- Looking at the horizon — the fastest way to help your brain reconcile the motion.
The first and last night
Two moments catch people out. The first night, as the ship leaves sheltered water and meets open sea, and the last night, when it often speeds up to reach port on time. If you are sensitive, plan around both: choose a calm cabin, take medication early, and keep the first evening low-key rather than celebratory.
| Moment | Why it can be rough | What helps |
|---|---|---|
| First night | Leaving sheltered water | Remedy before sailing, calm cabin |
| Open-sea days | Longer swell | Horizon, fresh air, hydration |
| Last night | Faster sailing to port | Early remedy, lighter dinner |
| Tender rides | Small boats, more motion | Take a band or tablet beforehand |
If you do feel unwell
- Go up on deck, get fresh air and fix your eyes on the horizon.
- Lie down in your cabin and keep your head still.
- Sip water and eat something bland when you can.
- Ask the ship's medical centre for help if it persists — they deal with this constantly.
Practical tips
- Book a midship, low cabin if you are at all prone to motion sickness.
- Pack your chosen remedy in hand luggage, so it is available on day one.
- Avoid heavy, greasy meals and excess alcohol on the first evening.
- Keep hydrated; dehydration makes nausea worse.
- Remember that most people adapt within a day or two as their body adjusts.
Seasickness is usually a brief, manageable inconvenience rather than a ruined trip, and a little planning keeps it that way.
If steady nights matter to you, our cabin guide covers exactly where to book.