Sail from Athinios to Nea Kameni’s lava ridges, float in Palaia Kameni’s sulphur-tinted springs, and spend two hours on the untouched island of Thirassia before returning to Oia for the famous caldera sunset. This full-day cruise pairs geology and swimming with authentic island life.
More ways to explore the area's outdoor wonders
You step onto the deck at Athinios Port as the Aegean lifts the boat away from the white-cliff shore, the caldera’s vertical face sliding past like a geological map. The sea dares you forward; wind and salt sharpen the colors: bleached domes, ink-blue water, and black lava islands rising like recent memory.
Difficulty
easy
Duration
10 hours
Fitness Level
Suitable for average fitness; requires short uneven hikes on volcanic terrain and boarding small boats.
Wildlife
History
Santorini’s dramatic caldera is the result of a massive Minoan-era eruption (~1600 BCE); Nea and Palaia Kameni are much younger volcanic formations from repeated eruptions over the past two centuries.
Conservation
The caldera’s marine ecosystems are sensitive—use reef-safe sunscreen, avoid littering, and stick to marked paths on volcanic islands to protect fragile soils and plants.
Reserve your spot on the Caldera Morning Cruise and Sunset from Oia Village today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring seasickness remedies
Open Aegean and rolling swells can trigger motion sickness—take medication before boarding if you’re susceptible.
Wear water shoes
Volcanic rock is sharp and slippery; water shoes make the hot-springs swim and the Nea Kameni walk far more comfortable.
Pack cash for Thirassia
Small tavernas and shops on Thirassia may accept only cash—have euros on hand for lunch or purchases.
Reserve a sunset spot early
Oia fills quickly; if you want a quieter view, arrive well before sunset or book a restaurant table.
Reef-safe sunscreen
Protects skin and marine life during long sun exposure on open decks and swims.
summer
Water shoes
Protects feet on rough lava rock and during swims near rocky shorelines.
summer
Light windproof jacket
Wind strengthens on the caldera in cooler months and after sunset.
spring
Seasickness tablets or bands
Reduces discomfort on choppy crossings between islands.