The Santorini caldera is what remains of a volcano that exploded around 1600 BC. The eruption was one of the five largest in human history and probably caused a 15-metre tsunami that wiped out Minoan civilisation on Crete. What you’re sailing around today is a partially submerged crater — cliffs on three sides, an open sea gap on the fourth, and water so deep at the centre that anchors don’t reach the bottom.

This is the context for a Santorini catamaran cruise. You’re not just boating around a pretty island — you’re circumnavigating the rim of an active volcano while watching the sun set behind Oia. Most cruises follow the same 5-hour route: caldera swim stops at the red and white beaches, then a pause at the hot springs (sulphur-heated water), then the final westward sail to watch the sunset from the water. Our separate Santorini caldera cruise guide covers the other cruise format; this one is the catamaran-specific upgrade version.



This guide covers the three main catamaran cruises, the differences between morning / afternoon / sunset sailings, and whether the premium “gold” version is worth the upgrade.
- In a Hurry? Here Are the Top Picks
- What the Cruise Actually Includes
- The Three Cruise Types Compared
- The Best Tours to Book
- 1. Santorini Classic Catamaran Cruise with BBQ — 4.88
- 2. Santorini Gold Catamaran Cruise with Snorkel, BBQ & Open Bar — 7
- 3. Half-Day Exclusive Catamaran Cruise — 3.02
- What You Actually See: The Swim Stops
- The Red Beach
- The White Beach
- The Hot Springs (Palia Kameni)
- The Sunset Stop
- When to Sail
- What to Wear
- How to Get to the Marina
- Worth Knowing Before You Book
- Pairing with Other Santorini Activities
- Worth the Cruise or Skippable?
- More Greece Guides
In a Hurry? Here Are the Top Picks
Best classic: Santorini Classic Catamaran Cruise with BBQ — $114.88 per person. 5-hour cruise, BBQ on board, hotel transfers. The most-booked version.
Best premium: Santorini Gold Catamaran Cruise — $117 per person. Snorkeling included, open bar, smaller group.
Best for couples: Half-Day Exclusive Catamaran Cruise — $133.02 per person. Smaller group, meal, open bar, arguably the best food of the three.

What the Cruise Actually Includes
Most Santorini catamaran cruises run 5-6 hours with a standard itinerary. Here’s the typical sequence.
13:00-14:00: Hotel pickup (if included) or meeting at Vlychada Marina.
14:30: Boarding. Safety briefing, welcome drink.
15:00: Sail past the Red Beach and the White Beach. Short swim stop with snorkelling opportunities — volcanic rocks underwater, interesting geology, small fish.
16:30: Stop at Palia Kameni — the hot springs islet. The water is warm-temperature (35-40°C), rust-coloured from iron, and smells of sulphur. Swim for 20-30 minutes if you want.
17:30: BBQ served on board while the catamaran sails slowly along the caldera cliffs.
19:00-19:30: Approach Oia from the water, in time for sunset.
19:45-20:15: Sunset viewed from the catamaran.
20:30: Return to Vlychada Marina.
Total: about 6 hours door-to-door if pickup is included.


The Three Cruise Types Compared
All three main cruises cover roughly the same itinerary. What differs is the group size, the food quality, and the finishing touches.
Classic Catamaran ($115): 30-40 passengers max. BBQ buffet (Greek meze, grilled meat, salads). Open bar with wine, beer, and soft drinks.
Gold Catamaran ($117): 18-25 passengers. Slightly more upscale food service (plated rather than buffet). Premium open bar including cocktails. More time at each stop.
Exclusive Catamaran ($133): 10-12 passengers. Proper meal with multiple courses. Full premium bar. Customisable itinerary (they’ll detour to your preferred swim spot).
For most visitors, the Classic is the best-value option. The Gold is worth the extra $2 if you want snorkelling gear and a slightly less crowded boat. The Exclusive is for couples on honeymoon or groups willing to pay a premium for intimacy.

The Best Tours to Book
1. Santorini Classic Catamaran Cruise with BBQ — $114.88

The classic. $115 covers a 5-hour afternoon/sunset cruise with everything you need — BBQ meal, drinks, hotel pickup from all major Santorini villages. Past visitors consistently praise the crews by name; the operator runs about 6 boats so crew rotations are consistent. Our review covers exactly what’s included and which swim stops work best. Book the afternoon-to-sunset slot (14:00 pickup) rather than the morning slot; the light during the return leg is half the experience.
2. Santorini Gold Catamaran Cruise with Snorkel, BBQ & Open Bar — $117

The step-up pick for $2 more. Gold tier runs smaller groups (18-25 vs 30-40), includes snorkelling gear (masks, fins), and has a better bar — premium wines, cocktails, and craft beer rather than just the basics. Our review covers the difference between the Gold and Classic versions. Worth the upgrade if the specific boat matters; both versions cover the same itinerary but the boat is different.
3. Half-Day Exclusive Catamaran Cruise — $133.02

The best catamaran experience if budget isn’t the constraint. 10-12 passengers max — meaning you actually have space to lie on the trampolines at the bow without shuffling around other people. Food is plated rather than buffet, with more variety (octopus carpaccio, proper Greek salads, good lamb). Our review covers exactly what you get for $18 more. For honeymoons, anniversaries, or groups of 4+ who want the boat to themselves, this is worth the premium.
What You Actually See: The Swim Stops
Each cruise hits 2-3 swim stops in the caldera. Each is different.

The Red Beach
At the south of the island below Akrotiri. The beach itself is red volcanic sand — iron-rich volcanic tuff that looks almost maroon in strong sunlight. You don’t swim at the beach (too shallow and rocky); you anchor offshore and swim from the boat. The water here is clear enough to see 10 metres down. Volcanic rocks under the surface give interesting snorkelling.

The White Beach
A neighbouring beach separated from Red Beach by a small headland. The sand here is paler — lighter volcanic pumice. Water is slightly different colour too — lighter turquoise. Most cruises swim here too, or swap between the two depending on conditions.
The Hot Springs (Palia Kameni)
A small islet in the middle of the caldera. Sulphurous hot water flows from underwater vents; swimming in it feels like swimming in slightly-brownish bathwater. Most people spend 15-20 minutes — enough for the experience, not long enough for the sulphur smell to stick to your swimsuit. Warning: the water stains white swimsuits, so wear something old.
The Sunset Stop
Not really a stop — the boat drifts west of Oia with the engines off while the sun sets. 20-30 minutes with everyone on the bow watching the cliffs light up. You don’t swim here.


When to Sail
Santorini catamarans run April through October. No winter service.
April-May: Cool water (18-20°C), uncrowded caldera, good light for photography. Warm enough for sunbathing but too cold for most people to actually swim.
June: Water warms up (21-22°C), moderate crowds, perfect conditions.
July-August: Peak season. Water 23-25°C, air temperatures 30-35°C. Caldera gets busy — boats cluster at the sunset spot by 7pm. Book 2-3 days ahead.
September: The best month overall. Warm water, thinner crowds, excellent light.
October: Quieter still but weather less predictable. Some afternoon tours switch to morning due to wind.

Wind is the main variable. Santorini gets the meltemi — a strong north wind that picks up in July-August and makes the caldera choppy. Cruises still run but the swim stops are less comfortable. If the forecast shows 30+ km/h winds, consider rescheduling.

What to Wear
Swimsuit under your clothes. You’ll change on board but most people board already in swim gear.
Old swimsuit or dark colour. The hot springs stain light-coloured fabric. Bring something you don’t mind.
Towel. Most boats provide basic ones but they’re thin. Bring your own if you care about warmth or softness.
Waterproof sunscreen. Strong Aegean sun for 5 hours. Reapply during swim stops.
Sunhat and sunglasses. Both should have retention straps — wind gusts remove both from unsuspecting passengers regularly.
Light jumper for sunset. Temperature drops 8-10°C once the sun goes down. Even in August, the sunset cruise gets cool.
Phone dry bag. You’ll want to photograph swimming and the sunset. A waterproof phone pouch ($10 on Amazon) is invaluable.
Cash for tips. Crew tips are appreciated, not mandatory. €5-10 per person is standard on a good cruise.

How to Get to the Marina
Santorini catamaran cruises leave from Vlychada Marina on the south coast. About 30 minutes by taxi from Fira, 45 minutes from Oia.
Hotel pickup: Included in most cruises. Minibus picks you up from a central meeting point near your accommodation.
Taxi: €25-30 from Fira, €35-40 from Oia. Book ahead; taxis in Santorini are sparse and expensive in summer.
Bus: Local KTEL bus from Fira to Vlychada runs hourly. €3. Takes 40 minutes.
Rental car: Free parking at the marina. Easiest option if you’ve got a car for the rest of your stay.


Worth Knowing Before You Book
Cruise durations vary with winds. A 5-hour cruise can become 4.5 hours if the meltemi is strong. Operators compensate with extra food/drinks rather than refunds.
Some operators upsell “private charter” add-ons that are just slightly-smaller-group versions of the same tour. If going private matters, book the Exclusive tier directly.
Photos from the boat are technically tricky. The camera is moving constantly; sunset has a narrow exposure window. Bring a phone with Night mode for the sunset itself.
Life jackets are required for swimming by some operators and optional for others. If you’re a strong swimmer and don’t want one, check the operator’s policy before booking.
The hot springs are not actually that hot. They’re warm to cool; if you’ve been in a 40°C hot tub before, these are milder. Don’t oversell them to travel companions.
Cancellation is usually 24-hour free on GYG and Viator. Weather cancellations are refunded in full.

Pairing with Other Santorini Activities
Santorini is a 2-3 day island. The catamaran cruise is a half-day afternoon/evening; pair it with:
Morning before the cruise: Fira or Oia walking, Santorini archaeological museum, or a breakfast at a caldera-view café.
Day before the cruise: An Assyrtiko wine tour — Santorini’s volcanic soils grow some of Greece’s best white wine. Half-day afternoon activity.
Day after the cruise: Akrotiri archaeological site (Bronze Age Pompeii) plus Red Beach viewpoint.
Sailing onward: Santorini is the southern end of most Cyclades itineraries. Ferry to Mykonos, Paros, or Naxos is 2-3 hours. From Mykonos, the Delos boat tour is the natural next half-day booking.

Worth the Cruise or Skippable?

Worth the cruise if: you’re on Santorini for more than 2 nights, you enjoy boat trips, or you want the caldera-from-sea perspective that walking the cliffs can’t give you.

Skippable if: you’re on a 1-night Santorini stopover from an island-hopping itinerary. In that case, just do the sunset from Oia on foot and save the money.
For most Santorini visitors with 3+ nights, the catamaran cruise is the headline activity. If you’re trying to decide between this and the equivalent tour on a larger cruise boat (which we cover in our caldera cruise guide), the catamaran wins on intimacy, food quality, and passenger comfort — but costs about 40% more. The larger boats do one thing better: a dedicated upper deck for sunset viewing, whereas on a catamaran you’re competing with 20 other passengers for the trampoline front space. If photography is the priority and food is secondary, the caldera cruise may be the better pick. Otherwise, the catamaran is the tier-1 Santorini day. Every photo of Santorini you’ve saved on Pinterest will look 10x better when you’re seeing it from the water with a cocktail in hand.

More Greece Guides
The catamaran cruise is one of several classic Santorini bookings — pair it with the caldera cruise guide (cheaper, less premium) and the wine tour guide. For island-hopping context, our Delos from Mykonos and Spinalonga in Crete guides cover the other Cycladic highlights. For Athens-base Greece, the Acropolis combo pass, Meteora, and Delphi guides cover the capital’s classic day trips.
Affiliate disclosure: We may earn a small commission from bookings made through the links on this page. It doesn’t change the price you pay and helps keep the site running.
