Board a short cruise from Fira to walk the crater rims of Nea Kameni and bathe in the thermal waters of Palea Kameni. This three-hour outing combines a brief volcanic hike, warm sulfur springs, and sweeping caldera views.
More ways to explore the area's outdoor wonders
You step down from Fira’s cable car into a pocket of sea and stone — the Old Port’s tiny harbor tucked under sheer caldera cliffs. The boat rocks as guides brief the group; beyond the harbor, the Aegean presses in, wind and light slicing across water that will lead you to an island still shaping itself.
Difficulty
moderate
Duration
3 hours
Fitness Level
Suitable for those comfortable with short rocky hikes and basic swimming; not recommended for people with serious mobility issues or poor sea-sickness tolerance.
Wildlife
History
Santorini’s caldera was formed by a massive Bronze Age eruption; later eruptions built the newer islands of Nea and Palea Kameni inside the flooded caldera.
Conservation
The volcanic islets are geologically fragile and subject to erosion; visitors should stay on marked paths, avoid disturbing fumaroles, and pack out all trash to limit human impact.
Reserve your spot on the Santorini Volcano Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Exchange tickets at the Old Port
Go to Caldera's Boat Santo Star travel at the Old Port of Fira to exchange your voucher at least 30 minutes before departure.
Bring swim skills
Reaching Agios Nikolaos hot-spring bay requires swimming in open water — be confident in your ability to swim and wear a swim vest if unsure.
Wear sturdy shoes
Volcanic trails are sharp and uneven; closed-toe shoes with grip protect your feet and help on loose scoria slopes.
Protect from sun and sulfur
Sunscreen, a hat and a towel are vital; the hot-spring water and mud can stain light fabrics so pack a quick-change set.
Sturdy closed-toe shoes
Grip and toe protection for walking on loose volcanic rock and steep paths.
Swimsuit & towel
Needed for the hot springs dip and changing after the mud bath.
summer
Sun protection (hat, SPF 30+)
Direct sun on black volcanic rock intensifies UV exposure during the sail and walk.
summer
Reusable water bottle
Hydration is important during the sun-exposed walk and boat transfer.