Seasickness on a Yacht Charter: What Actually Helps

Somebody in almost every group is quietly worried about this, and they usually raise it after the boat has been chosen rather than before. That is the wrong order, because the three things that matter most are all decided earlier: which hull you charter, which cruising ground you go to, and which weeks you sail.

Get those right and seasickness stops being the thing that shapes the holiday. Most guests who expect to suffer do not, and the ones who do usually feel it on one passage rather than for a week.

Why it happens

Motion sickness comes from a disagreement between what your inner ear senses and what your eyes see. Below deck the cabin is still relative to you while the boat is moving, and the mismatch is at its sharpest. On deck, with the horizon visible, the two signals line up again, which is why going outside is the first thing any crew will tell you to do.

Several things make it worse and none of them are about the sea: tiredness, an empty stomach, alcohol, being cold, reading a phone below deck, and anxiety about the whole subject. A guest who flew at six in the morning, skipped lunch and went below to unpack has stacked four of those before the boat has left the berth.

The hull matters more than anything else

A catamaran sits on two hulls set well apart, and that geometry resists the rolling motion that causes most seasickness. It also stays flat rather than heeling, so the deck you walk on stays roughly level. For anyone who is genuinely anxious about movement, this is the single most effective decision available, and it is made at the point of choosing a boat rather than at sea.

A sailing monohull heels under sail and rolls at anchor in an exposed bay. Some guests find the heel reassuring once they understand it is normal, and others do not. If someone in the group is already worried, do not make them find out on day one.

A motor yacht sits between the two. Larger ones often carry stabilisers, which reduce roll noticeably both underway and at anchor.

Our guide to choosing a yacht type sets out the wider trade-offs between the three, including the ones that have nothing to do with movement. Much of the Greek fleet is catamarans, and the Athens charter guide covers what is based there.

Choose a sheltered cruising ground

Where you sail changes how much movement there is to tolerate. Three of the grounds we cover are genuinely calm by reputation rather than marketing.

The Ionian, in western Greece. The gentlest sailing in the country. Islands sit close together, the afternoon breeze is moderate and predictable, and shelter is rarely more than an hour away. The Preveza guide covers it in detail.

The Saronic Gulf, out of Athens. Largely protected from the meltemi, the dry north wind that runs down the Aegean in July and August. Passages between Aegina, Poros, Hydra and Spetses typically run one to three hours, so there is no long crossing to endure.

The Dalmatian islands, out of Split. The islands mostly shelter each other, so the water between them stays workable even when the open Adriatic is not. The summer wind is the maestral, a thermal north-westerly that builds through the middle of the day and dies in the evening.

The Cyclades are the exception worth naming. They are more exposed and the passages are longer, and in a meltemi week they involve real movement. They are a wonderful cruising ground and they are not where you take a nervous first-timer in August.

What the crew can do

This is the part guests underestimate. A captain who knows the coast has a lot of control over how much the boat moves, and none of it requires you to ask twice.

• Timing. Sailing in the morning before the afternoon thermal builds is calmer than sailing at three o'clock. On a crewed boat this costs you nothing but an earlier start.
• Angle. Taking the sea on the quarter rather than beam-on changes the motion considerably. A captain will do this automatically if they know somebody aboard is struggling.
• Route. Shortening a passage, staying inside an island chain, or choosing a different anchorage for the night are all normal adjustments.
• The anchorage itself. A bay that is comfortable in one wind direction rolls badly in another. Crews know which is which locally, and that knowledge is difficult to get from a chart.

Tell the crew at the start of the week rather than on the second bad afternoon. They will plan around it from day one, and nobody will make a fuss about it.

Practical measures aboard

Stay on deck and look at the horizon or the land. Sit low and towards the middle of the boat, where there is least movement. Eat something plain and keep drinking water. Get fresh air before you feel unwell rather than after.

Remedies vary by person and most work better taken in advance than in response. Over-the-counter tablets, patches worn behind the ear, acupressure bands and ginger all have their advocates. Speak to a pharmacist or your doctor before you travel, particularly about anything that causes drowsiness or interacts with other medication, and pack it in a cabin bag rather than the hold. The yacht charter checklist covers the rest of what to bring.

If someone does feel unwell, it usually passes within a day or two as they adjust. Lying down in a cabin makes it worse rather than better in the early stages, so on deck is the right place to be.

Choosing a boat that suits the group

Start with the hull and the cruising ground, because those are the decisions that carry the most weight and the hardest to change later. Filter the fleet by guest capacity and hull type at browse yachts, or look at what is based in the calmer ports from the destinations page.

When you have two or three that fit, send an enquiry with your dates, your party size and a note that somebody in the group is prone to seasickness. We pass it to the owner or manager, who confirms what is genuinely available and puts you in direct contact, and the crew can plan the week accordingly. If chartering is new to you, how to charter a yacht walks through the process in order.