Spend a private five-hour catamaran day cruising Santorini’s caldera: swim at volcanic hot springs, explore the low-key island of Thirassia and enjoy on-board Greek mezedes and wine. This guide explains what to expect, where you stop and how to prepare for calm seas and sun-drenched decks.
More ways to explore the area's outdoor wonders
By midmorning the catamaran slips out of Ammoudi Bay, sails kissing the sheer rim of Santorini’s caldera as jagged volcanic cliffs peer down.
Difficulty
easy
Duration
5 hours
Fitness Level
Basic mobility and the ability to board a small ladder from low docks or onto small tenders; light walking on Thirassia for about an hour.
Wildlife
History
Santorini’s present shape reflects a major Bronze Age volcanic eruption (around 1600–1500 BCE) that created the caldera and separated islands such as Thirassia from the main island.
Conservation
Stick to marked swimming areas, avoid stepping on underwater reefs and use reef-safe sunscreens; operators often emphasize minimizing waste and respecting fragile volcanic shorelines.
Reserve your spot on the Private Full Day Trip from Santorini on a Catamaran today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef-safe sunscreen
Santorini enforces sensitive marine areas—use reef-safe sunscreen to protect both skin and the volcanic sea life.
Stabilize for seas
If you get seasick, take medication before boarding and choose a mid-boat seat with the clearest horizon view.
Non-slip footwear
Decks can be wet and rocky shorelines can be uneven; wear rubber-soled shoes for boarding and short shore excursions.
Confirm dietary needs
Let the operator know about vegetarian, vegan or seafood allergies ahead of time to ensure mezedes or BBQ options are arranged.
Reef-safe sunscreen
Protects skin and marine habitat while spending time swimming and snorkeling.
summer
Swimsuit & quick-dry towel
For swims at the Hot Springs and Thirassia; towels are often provided but a personal towel is handy.
summer
Non-slip deck shoes
Improves footing on wet decks and when stepping onto rocky shorelines.
Motion-sickness tablets or wristbands
Useful for anyone prone to seasickness during open-water segments.