Whale watching boat and seasickness: what to expect

Whale watching is a high-risk trip for a reason most passengers do not see coming: the boat stops. It cruises out fine, then sits in open swell at a sighting, and that is the moment people commonly report going from fine to unwell.

Large catamaran, monohull tour boat or fast RIB · 2.5 to 4 hours in open coastal water · Reported seasickness risk: commonly reported as a strong trigger.

Reported risk: Whale watching boat

Low
Moderate
High
Very high

Risk summarises what passengers, crews and published marine guidance commonly report for this kind of craft, not a measurement of any one operator's boat.

Reviewed August 2026

Key facts

Whale watching trips typically run 2.5 to 4 hours in open water beyond the harbour, with long stops at sightings.
Operators state that boats roll when stopped in wavy seas, and stopping is the design of the trip rather than an interruption to it.
The upper deck and the enclosed cabin are the two spots most commonly reported as worse; midships on the open main deck is the calmer one.

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Why a whale watching boat sets people off

The outbound run is usually the comfortable part. At a sighting the boat idles or stops, a hull without forward drive lies beam on to the swell, and it rolls. One Icelandic operator says exactly this in its own FAQ: boats can roll when stopped in wavy seas, and that is when motion-sensitive passengers get sick. The second trigger is what everyone does at a sighting. Heads go down over a camera or a phone, tracking a whale that surfaces and vanishes, which is a small moving target rather than a fixed horizon.

The stationary viewing period can feel rougher than the trip outEditorial image: Dizzout

Stopped or underway: which part is worse

Worse stopped. A firsthand account on the Cruise Critic boards runs the classic pattern: fine while the boat was moving, sick once it stopped to watch whales in the swell.

Where to be on board

Main deck, midships, in open air with the horizon in view. Skip the enclosed cabin and the high upper deck, where the roll is amplified. When the boat stops, keep your eyes moving between the whales and the horizon rather than down at a camera screen.

Pack audio away before the briefing

If you prepare Dizzout with your headphones during a shoreside pause, pack them away before the briefing. Follow crew instructions for the boat trip.

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What helps on this trip

Take the main deck midships and stay outside. The upper deck looks like the better view and moves considerably more.
At a sighting, alternate: whale, horizon, whale. Long stretches down a camera viewfinder while the boat rolls is the common trigger.
If the operator runs both a large boat and a fast RIB, the bigger hull is the steadier platform at a stop. Dive guidance makes the same recommendation for the same reason.
Get air on your face. Open deck, wind and a horizon are the three things that cost nothing.
If it starts anyway, put your earbuds in. Dizzout is drug-free sound therapy designed to help after symptoms start, and it works with any headphones.

For what actually holds up under testing, see the remedy verdicts, and for the water itself rather than the boat, how rough your sea usually is. Anything you take before travelling is a question for a pharmacist or doctor.

Frequently asked questions

Will I get seasick whale watching?

Some passengers do, and the reports cluster at a predictable moment. Whale watch boats leave harbour and cross open coastal water, then stop or idle at a sighting, often for a long stretch. Operators state that boats roll when stopped in wavy seas and that motion-sensitive passengers get sick in exactly those conditions. If the forecast is calm and you stay midships on the open deck with the horizon in view, most people are fine.

Why do people get sick when the boat stops to watch whales?

A boat with no forward drive tends to swing beam on to the swell and roll, and a slow side-to-side roll is the motion people tolerate worst. Underway, the hull is driven through the water on a chosen heading and the motion is steadier and more predictable. Firsthand accounts follow that pattern closely: fine on the way out, unwell once the engines came back to idle at the whales.

Where should I sit on a whale watching boat to avoid seasickness?

Main deck, midships, outside. Motion is amplified the higher and the further from the centre you go, so the top deck rides worse than the main one, and the bow rides worse than the middle. The enclosed cabin is the other place to avoid: it is out of the wind but it also takes away the horizon, which is the reference your balance system wants most.

Will I get seasick whale watching in Iceland?

It depends on where you sail from and which boat you book. Tours from Húsavík cross Skjálfandi Bay, which Visit North Iceland, the region's official travel guide, calls a sheltered bay, on traditional oak boats or fast RIBs, and North Sailing's Húsavík season runs from 1 March to 30 November, depending on the tour. Húsavík Adventures says its RIBs do not roll while driving but can roll when stopped in wavy seas, so the sighting is still the moment to watch. Out of Reykjavík, Elding runs a big boat for up to 196 passengers and a fast 12 seat RIB, and says movement is less intense at the back of the boat.

Will I get seasick whale watching in Kaikoura?

Kaikoura tours go out on the open ocean, and the operator says so plainly. Whale Watch Kaikoura gives every tour a moderate chance of motion sickness as its standard warning, and raises it to high when conditions make seasickness most likely. Its crew normally keeps passengers seated while the boat travels at speed. Tours run every day except Christmas Day, with just over two hours on the water, and every sailing depends on sea and weather conditions. A high warning on your day is the operator telling you the sea is rough.

Will I get seasick whale watching on Maui?

Book a morning trip if you can. Go Hawaii, the official travel guide run by the Hawaiʻi Tourism Authority, puts humpback season at December through May, with the peak between January and early April, and says the whales gather in the shallow ʻAuʻau Channel between Maui, Molokaʻi and Lānaʻi. Hawaii Magazine notes that the usual trade wind pattern brings calm mornings and windy afternoons, and that the ride is more comfortable early in the day when it is calm. It describes diesel catamarans as wide, stable viewing platforms.

Other trips and excursions

Sources & further reading

Your next question, probably

Will the water itself be rough?

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Written from operator guidance, marine, aviation and specialist sources, and published passenger and participant reports as of September 2026. Risk levels describe a kind of trip, not any particular operator's craft, and conditions on the day matter more than the category does. Operator and brand names are trademarks of their respective owners; Dizzout is not affiliated with or endorsed by them. Sensitivity varies from person to person; this page is informational and not medical advice.