Santorini Volcano & Hot Springs: The Caldera Day Trip
The black lava islet in the middle of Santorini's caldera is an active volcano you can actually climb — then cool off with a swim in the warm, iron-red springs beside it. Here is how to do the classic volcano and hot springs day trip, with the best-rated daytime cruises to book.
At a glance
- 1Morning boat from Fira old port
- 2Hike the Nea Kameni crater
- 3Swim in the sulphur hot springs
- 4Taverna lunch on Thirassia
Morning: down to the old port
Most volcano boats leave from Fira's old port at the base of the cliff. Get down early — the cable car (around €6 each way) builds long queues from mid-morning, and the alternative is 588 zigzag steps shared with donkeys. Daytime departures typically run between 9am and 2pm, and basic caldera cruises start from around €30, so this is one of the most affordable big experiences on the island.
Hiking Nea Kameni's crater
The boat drops you at Nea Kameni, the younger of the two lava islets, for a guided walk to the crater rim. The trail climbs about 130 metres over loose volcanic gravel — allow 20–25 minutes up and wear closed shoes, not flip-flops. At the top you'll see steaming sulphur vents and a 360° view back at the caldera cliffs. Bring water and a hat; there is zero shade on the island. A small landing fee (a few euros) is usually paid on arrival.
