Sail from Oia into the caldera on a five-hour catamaran that pairs Thirassia swims, volcanic hot springs and a sunset run past Santorini’s dramatic beaches—dinner and open bar included. Learn the island’s geological story while snorkeling in clear volcanic coves.
More ways to explore the area's outdoor wonders
You push off from Ammoudi Bay as the Aegean wind nudges the catamaran away from Oia’s white rim of houses; the cliff drops away and the caldera opens into blue that seems deeper with each nautical mile.
Difficulty
easy
Duration
5 hours
Fitness Level
Suitable for most fitness levels; requires basic mobility for ladder boarding, short swims and walking on uneven rock at coves.
Wildlife
History
Santorini’s caldera formed after a major Bronze Age volcanic eruption; the island’s cliffs and colored beaches reflect repeated volcanic deposits and centuries of maritime life.
Conservation
Use reef‑safe products, avoid touching marine life or anchoring on reefs, and follow crew guidance to minimize disturbance to fragile caldera habitats.
Reserve your spot on the Santorini All-inclusive Catamaran Cruise with Thirassia Stop today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Protect your skin
Use reef‑safe sunscreen and reapply after swims—sulphurous water and sun amplify UV exposure on the caldera.
Prepare for ladder entries
Bring water shoes for rocky beaches and practice cautious, slow entries when boarding from the boat ladder.
Motion-sickness plan
If you get seasick, take medication an hour before departure and sit mid-ship where motion is minimized.
Time it for the sunset
Bookings that leave later in the afternoon give you calmer midday swims and the best viewing angle for the caldera sunset.
Swimsuit and quick-dry towel
Essential for swims at Thirassia and the hot springs; towels are also provided but bring a spare.
Reef‑safe sunscreen
Protects your skin and local marine life from harmful chemicals common in standard sunscreens.
summer
Water shoes
Useful for rocky shore entries at coves like White and Red Beach and for moving on volcanic rock.
Light windbreaker or fleece
The Aegean breeze cools quickly after sunset—layering keeps you comfortable during the return to Vlychada.
spring