At a glance
| Detail | |
|---|---|
| What it is | Active volcanic islet at the centre of the caldera — a crater-rim climb |
| From Perissa | By boat only — cruises leave from the caldera ports, not Perissa's beach |
| Getting there | Cruise with hotel pickup, or KTEL bus to Fira Old Port + cable car |
| The climb | Marked gravel path to the ~130 m crater rim, ~1–1.5 h round trip, exposed |
| Fee | ~€5 islet fee, cash only (rangers at the trailhead) |
| Season | May–October |
| Best for | Volcano, boat tour, crater walk |
The volcano at the centre of the caldera
Santorini is a collapsed volcano. The great cliff-lined bay you see from Fira and Oia is the caldera — a crater flooded by the sea after one of the largest volcanic eruptions in human history, the Minoan eruption of around 1600 BC (roughly 100 times the size of Vesuvius), which buried the Bronze-Age town of Akrotiri. At its centre sit two younger, still-growing volcanic islets: Nea Kameni ("new burnt island") — built up by eruptions since the 1570s, the youngest land in the eastern Mediterranean, and still steaming from its last eruption in 1950 — and neighbouring Palea Kameni. Nea Kameni is technically an active volcano; the classic Santorini boat tour takes you out to both.
On Nea Kameni you land at a small jetty and follow a marked gravel path up through a raw, Mars-like landscape of black and rust-red lava to the rim of the main crater — about 130 m above the sea — where you can often smell sulphur and see steam rising from vents. The walk is not long — plan on roughly an hour to an hour and a half round trip — but it is uphill, fully exposed and on loose volcanic rock, so wear proper trainers, a hat and sunscreen and carry water. There is a small entrance fee for the islet, on the order of €5, collected in cash by rangers at the trailhead — there are no card facilities on the lava.
Getting to the boat from Perissa
The one thing every Perissa guest needs to know: these boats do not leave from Perissa's beach. Perissa sits on the island's calm black-sand southeast coast, while the volcano cruises depart from the caldera ports on the far side of the island — mainly Fira's Old Port, plus Athinios, Ammoudi (Oia) and Vlychada. There are two sensible approaches:
- Book a cruise with hotel pickup. Many catamaran cruises include hotel or nearest-point pickup by minibus and drive you across to the departure port (usually Athinios or Vlychada) and back, so you never have to solve the transfer yourself.
- Make your own way to Fira Old Port. The cheaper short boat tours leave from the Old Port of Fira (Skala). Take the KTEL bus from Perissa to Fira (~25 min,
€2.70), then get down to the Old Port about 220 m below by cable car (€10, 2025 fare — sold one-way only, no return ticket) or the roughly 588 steps. Be at the meeting point 30 minutes before departure.
Note that Vlychada, on the southwest coast, is the closest departure port to Perissa if you rent a car or take a taxi. Typical short tours cost about €30–55, all-inclusive catamaran days €130–150+.
For the full breakdown see our Santorini volcano boat tour and catamaran cruise guides.



