Board a wooden sailboat from Fira for a six-hour loop: hike an active volcanic crater, swim to warm mud baths, then circle the caldera at sunset with local wine. Expect volcanic trails, a short sea swim, and close-up caldera views.
More ways to explore the area's outdoor wonders
Late-afternoon light strips the whitewashed houses with gold as a wooden sailboat slips from Fira's old port and heads for the dark heart of the caldera. Sea spray and a faint sulfur tang run ahead of you as the vessel ties up at Nea Kameni and passengers step onto jagged, black rock that still exhales steam.
Difficulty
moderate
Duration
6 hours
Fitness Level
Suitable for most travelers with average fitness—must handle uneven volcanic trails and a short open-water swim.
Wildlife
History
Santorini’s caldera formed after a massive Bronze Age eruption; subsequent eruptions built Nea Kameni and Palaia Kameni as volcanic islets inside the caldera.
Conservation
The islands are geologically delicate and subject to erosion and visitor impact—avoid removing rocks or disturbing fumaroles, and follow crew guidance to protect this active volcanic environment.
Reserve your spot on the Santorini Volcano & Hot Springs and Sunset on Board today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Sturdy footwear
Volcanic rock is sharp and uneven—closed-toe shoes with good grip are essential for the crater walk.
Bring swim gear and quick-dry towel
You’ll climb a ladder and swim ~30 m to the hot-spring bay, so pack a swimsuit and towel in an easy-access bag.
Sun protection and water
Late-afternoon sun still burns on exposed rock—use reef-safe sunscreen and carry water to stay hydrated.
Prepare for motion
Open Aegean can be choppy; take seasickness meds if you’re prone and secure loose items in a dry bag.
Closed-toe hiking shoes
Protects feet on sharp volcanic rock and provides traction on loose scree.
Swimsuit and quick-dry towel
Needed for the ladder exit and ~30 m swim into the hot-spring bay.
summer
Reef-safe sunscreen and sun hat
Protects skin on exposed crater trails and the open deck during the sail.
summer
Light windbreaker or fleece
Evenings on the caldera can be breezy; a thin layer keeps you comfortable on deck.
spring