Private Boat Cruise Santorini: Caldera, Hot Springs & Snorkeling

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Free cancellationExcellent qualityLikely to sell out

1/8

Duration5h

GroupPrivate

LanguagesEN

Mobile ticketAccepted

Swim in Santorini's warm volcanic springs, then snorkel off an island that remembers the 1990s.

A 5-hour private boat cruise from Fira's Old Port around Santorini's Caldera, with stops at the thermal springs of Nea Kameni, the lava formations and beach of Nea Kameni island, and the cliffs of Thirasia and Oia village. The boat includes snorkeling equipment, towels, local white wine, water, and five plates of traditional Greek food; your skipper speaks English and can adjust the route based on weather and your preferences.

Step-by-step itinerary

Santorini volcano and island cruise

Depart from Old Port of Fira
Optional stop at Nea Kammeni volcanic park
Swim at thermal springs
Visit lava island and beach
Swim and snorkel at Thirassia
Enjoy traditional meal on board
Cruise past Oia village and Ammoudi

The Experience

The cruise departs from the Old Port beneath Fira, the capital, where the steps down to the water give a sense of how isolated Santorini was before the cable car arrived. Your skipper will navigate the Caldera and explain the volcanic activity that shaped it as you move between stops. The first swim happens at the thermal springs near Nea Kameni, where the seabed's volcanic minerals warm the water—in some spots reaching around 100 degrees Fahrenheit—and leave minerals on your skin. Bring an old or black swimsuit; the sulfur in the water can discolor fabric.

From there, you'll see Nea Kameni's lava formations rising from the sea and stop at its southern beach for snorkeling in clear water, or skip the volcanic park entirely if you prefer more time swimming elsewhere. The route then heads to Thirasia, the western side of the volcano before it fractured into three pieces. The cliffs there show the layers of eruptions stacked on top of each other, and the island has fewer tourists than Santorini itself. While you're in the water, your skipper prepares the meal—five plates of local dishes made from products sourced on the islands. The final stop is a cruise under the white buildings and blue domes of Oia village, perched on the Caldera's edge, and past Ammoudi village below it.

You can book a morning or afternoon departure, and the skipper will work around weather and your interests—whether that means a longer stop at one beach, skipping Nea Kameni's volcanic park, or timing the route to catch the sunset. Snorkeling equipment and towels are provided. Tell the operator about any dietary needs when you book.

What’s included

Snorkeling equipment and towels.
local white wine, water, and five plates of traditional Greek food prepared on board.
English-speaking skipper.
private boat with flexibility to adjust stops and timing based on weather and your preferences.

Good to know

Easy physical levelPets welcome

Operated by Alex private boat rental

Is this one for you?Book this if you want a private boat with a skipper and crew handling navigation and meal prep, so you can focus entirely on swimming, snorkeling, and watching the sunset without managing logistics.