THE ADVENTURE COLLECTIVE® · Independent discovery and booking for outdoor travel
Board at Fira’s old port for a three‑hour cruise to Nea Kameni’s volcanic caldera and the sulfurous hot springs of Palea Kameni. Expect a 1.5‑hour guided moderate hike on volcanic rock and a 30–50 m swim to reach the warm springs — best for active travelers and capable swimmers.
Board at Fira’s old port for a three‑hour cruise to Nea Kameni’s volcanic caldera and the sulfurous hot springs of Palea Kameni. Expect a 1.5‑hour guided moderate hike on volcanic rock and a 30–50 m swim to reach the warm springs — best for active travelers and capable swimmers.
Book with Caldera's Boats Santorini Sea Excursions
Book directly with Caldera's Boats Santorini Sea Excursions for the best rates and real-time scheduling.
Reserve NowVerified experiences and guided adventures in the surrounding area.
Operated by Caldera's Boats Santorini Sea Excursions · Fira, South Aegean
The boat slips from Fira’s old port and the caldera opens like a raw wound in the sea: black rock, steam collars, and a horizon sharpened by white cycladic villages. Within minutes you’re close enough to smell the sulfur and hear the sea rim the volcanic cliffs — the landscape here feels alive and a touch uncompromising.
moderate.
3 hours.
Moderate fitness: able to hike 1–2 km on uneven volcanic terrain and swim 30–50 m in open water.
The guided walk on Nea Kameni is about 1.5 hours; a small entrance fee (around €5) is required to access the volcanic trails.
The boat anchors roughly 30–50 meters from the springs; swimmers must be comfortable in open water and able to handle light currents.
The waters are high in sulfur and warmth; they are not recommended for pregnant people or those with serious heart conditions—check health guidance before entering.
You can reach the Old Port by cable car (roughly €10 one way) from Fira town or by walking the 30‑minute stair descent; plan extra time for queues.
Santorini’s modern caldera formed through repeated eruptions, including the massive Late Bronze Age (Minoan) eruption that reshaped the islands and influenced regional societies.
Visitor fees and guided routes help limit erosion on fragile volcanic surfaces; avoid trampling fumaroles and pack out all trash to protect the caldera’s marine and terrestrial habitats.
Caldera's Boats Santorini Sea Excursions operates guided outdoor trips and adventures with an emphasis on safety, stewardship, and memorable experiences.
Book with Caldera's Boats Santorini Sea Excursions
Book directly with Caldera's Boats Santorini Sea Excursions for the best rates and real-time scheduling.
Reserve Now