Short answer: yes — it is the one paid activity on Santorini we would book again, and it solves the island’s biggest weakness. But the semi-private versions are worth the premium and the cheapest ones are not.
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Why it works on this island specifically
Santorini is a spectacular place to look at and a mediocre place to swim. The beaches are volcanic, the caldera side is cliff, and getting into the water usually means a bus and a black-sand beach that is nothing special.
A catamaran fixes that. You swim in the hot springs, off Red Beach and White Beach, in water you cannot easily reach from land — and you see the caldera from below, which is a genuinely different thing from seeing it from above.
What it costs
Roughly €90–150 per person for a five-hour shared trip including food and drink. Semi-private trips with fewer passengers run €150–220. Fully private charters start around €900–1,500 for the boat.
The shared trips are where the quality varies most. A boat with 40 people is a different day from a boat with 15, and the price difference is often only €40.
Day or sunset?
Sunset cruises cost more and sell out first. You get the light everyone comes to Santorini for, and dinner on board.
Day cruises are cheaper, have warmer water, longer swimming stops and fewer people. If swimming is your priority, take the day trip.
A point worth knowing: the sunset from a boat is good but not obviously better than the sunset from land, which is free. If you are choosing between them for the view alone, take the day cruise and watch the sunset from Imerovigli.
What tends to disappoint
- The hot springs. Warm rather than hot, muddy, and they stain swimwear. Bring an old costume.
- Crowded boats. The cheapest trips pack in numbers, and swim stops get short.
- Rough afternoons. The meltemi wind picks up in July and August. If you are prone to seasickness, take a morning departure.
Is it better than a day on Mykonos or a ferry hop?
For a couple with one spare day on Santorini, yes — it is the best use of that day. For anyone deciding between islands entirely, see Santorini vs Mykonos.
The verdict
The strongest paid activity on the island, and one of the few that is genuinely better than the free alternative. Pay the extra €40 for a smaller boat, take a morning or day departure if you want to swim, and do not pay a premium purely for the sunset.
Compare Santorini catamaran cruises — check the passenger count, because it is the single biggest difference between a good trip and an average one, and listings do state it.
See where to stay in Santorini for picking a village, and our Greece travel guide for the rest of Greece.
Compare tours and tickets in Santorini
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Frequently asked questions
Is a Santorini catamaran cruise worth it?
Yes — it is the strongest paid activity on the island, because Santorini is spectacular to look at and poor for swimming from land. A cruise gets you into water you cannot easily reach otherwise, and shows the caldera from below.
How much is a Santorini catamaran cruise?
Roughly €90–150 per person for a five-hour shared trip with food and drink. Semi-private trips are €150–220, and fully private charters start around €900–1,500 for the boat.
Is the sunset or day cruise better in Santorini?
Day cruises are cheaper, warmer, less crowded and have longer swim stops. Sunset cruises cost more and sell out first, but the sunset from a boat is not obviously better than from land, which is free.
Are the Santorini hot springs worth it?
They are warm rather than hot, muddy, and they stain swimwear — bring an old costume. Most people find them a curiosity rather than a highlight, and the swim stops elsewhere on the trip are better.
How do I choose a Santorini boat trip?
Check the passenger count before anything else. A boat with 15 people is a very different day from one with 40, and the price gap is often only about €40. Listings usually state maximum numbers.
About the author
Born and raised in the Middle East, I’ve spent most of my adult life travelling — more than 40 countries so far. I write these guides the way I’d explain them to a friend: real prices, honest opinions, and a straight answer about when the cheaper option is the better one.
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