Santorini Greece Boat Tours Compared: Six Days on the Caldera

The two shapes of boat day

The label ‘boat tour’ covers two completely different days here, and most of the confusion in reviews comes from people who booked one expecting the other. Getting this straight takes thirty seconds and saves the whole decision. All six sit on the Santorini Greece Tours home page with their prices.

The first shape is the catamaran cruise. Five hours, a marina on the flat south coast, a run along the caldera wall and the red and white beaches, two or three anchored swim stops, and a meal cooked on the back of the boat. You do not go ashore anywhere. Five of the six are this.

The second shape is the full-day volcano boat. Fourteen hours, a hotel pickup, and a sequence of landings: the crater path on Nea Kameni, the warm springs off Palea Kameni, lunch on Thirasia, then Oia in time for the sunset. It is a walking day that travels by sea, and it costs half what the catamarans do.

All six, side by side

Every figure below comes from the operator’s own listing. Where a listing does not state something — and the day boat does not state a group cap — the cell says so rather than guessing.

The cheapest way onto the water with a meal and swim stops is the classic catamaran; the cheapest day out of the six is the volcano boat. They are not competing for the same afternoon.

Which catamaran should you book?

Four of the five are close enough that the deciding factor is rarely the boat. Start with where you want to be at sunset, because two of them are built around it and two are not.

If you want the maximum time swimming, the two luxury catamarans out of Vlychada publish about three hours at the stops, which is the most on the list. If you want the smallest group, the half-day exclusive caps at 18 — but it also publishes the shortest time in the water, about an hour and ten minutes.

If price is the lever, the classic catamaran is $34 below the next one up and still includes transfers, a BBQ and drinks. Its cap of 22 is the largest of the five, which is exactly what you are trading away.

Is the fourteen-hour volcano day worth it?

It is the best value on the water and the hardest work. Fourteen hours, a crater walk on loose volcanic scree with no shade, a swim to the springs, a crossing to Thirasia and an evening in Oia. For $66 you see more of the caldera than any other single booking will show you.

Two things decide whether it suits you. The first is heat: Nea Kameni is bare rock and July and August average highs of 27 C, with no shade on the climb. The second is the length — you are committing an entire day, and if you are here for three days that is a third of your visit.

What you get in return is the only landing on this list. The catamarans pass the Kameni islands; the day boat puts you on one. If the volcano is the reason you came to Santorini, there is no substitute.

How much of a cruise is actually swimming?

More than most people expect. Read the itineraries against the clock and the anchored time runs from about 70 minutes to about three hours out of a five-hour trip. On the longest, more than half the booking is spent stationary.

That is the product, not a gap in it. The boats anchor off the red beach and the white beach, both of which are awkward to reach and shingly underfoot by land, and hand out snorkelling gear. If you are not going to get in, you are paying for a view of a stationary hull.

Sea state matters here more than air temperature. The water is open Aegean and it does not warm up as early as the air does, so a May cruise can be bright and still have a short swim.

What does the meal amount to?

On every catamaran here it is cooked on board while you are anchored, and it is substantially more than a sandwich. The listings describe a BBQ with Greek salads and sides; the two sunset boats serve it as dinner rather than lunch.

Four of the six include an open bar. That is worth reading carefully against the price gap, because a $34 difference between two otherwise similar boats is roughly what you would spend on drinks anyway.

Group caps, and why they are the honest number

Five of the six publish a maximum: 18, 20, 20, 20 and 22. Those are small numbers for a catamaran and they are the single most useful figure on any of these listings, because the deck space per person is what separates a good day from a crowded one.

The full-day volcano boat does not publish a cap. That is not evidence of a large boat, but it is an absence, and it is worth reading as one: a boat that seats twenty usually says so.

Sunset cruises and the moving clock

Sunset in Oia moves through three and a half hours across the year — 17:04 in early December, 20:41 at midsummer. A sunset cruise therefore has no fixed departure time, and two of these six state in writing that the winter timetable starts earlier.

Book a sunset boat in September and it leaves noticeably earlier than the same boat in July. Your confirmation carries the real time and it is the one to trust; the month table on the best-time page shows the shape of the swing.

What the wind does to your booking

The wind that shapes a summer boat day here is the meltemi, and it is measurable rather than folkloric. Across thirty years of daily records, 75 per cent of July days and 73 per cent of August days blow from the northern quadrant, and the mean longest unbroken northerly spell in those months is 17 days.

It rarely cancels a summer cruise. What it does is move a swim stop to the sheltered side or reverse the route, which is why two boats on the same day can describe different afternoons. Winter is a different question entirely: 41 per cent of January days reach Beaufort 6 or more, against 11 per cent in May.

The practical response is to book the boat for early in your stay. All six cancel free 24 hours ahead, so a Tuesday booking leaves Thursday open if the sea gets up.

The costs that sit outside the fare

Three of them, and only one is large. The EUR 5 national park fee on Nea Kameni is collected in cash on the rock and no boat fare includes it. Bring coins, because there is no card payment at the landing.

The cable car is the second: EUR 10 one way for an adult, EUR 5 reduced for children aged six to twelve and free under six, EUR 5 per bag. That only applies if your day starts or ends at the Old Port. Most of these boats leave from Vlychada on the far side of the island, so it will not touch you.

The third is tips, which are customary rather than compulsory. Nothing else on these six listings is chargeable once you are aboard.

When a boat is the wrong choice

If you are prone to seasickness, think hard before the fourteen-hour day. It is a long commitment with multiple transfers and no straightforward way to leave in the middle of it.

If you will not swim, four fifths of a catamaran cruise is not for you. A land tour covers the same coastline from above for less money, and the things-to-do page sets out what that day looks like.

And if you are here for a single day off a cruise ship, none of these fit. The cruises leave from the wrong side of the island and the day boat runs longer than your call. The excursions built for a port call are on the cruise page.

Questions people ask before booking