Book a Santorini Volcano and Hot Springs Tour

Overview

Discover Santorini’s volcanic landscape on this guided boat tour to Nea Kameni volcano and the natural hot springs of Palea Kameni. This half-day experience takes you by boat from the Old Port of Fira into the caldera, where you’ll explore volcanic terrain on foot and swim in warm, mineral-rich waters surrounded by dramatic island scenery. The tour combines light hiking, swimming, and sightseeing, offering a close-up view of Santorini’s geological history.

Experience highlights

• Boat trip through Santorini’s volcanic caldera

• Visit Nea Kameni island and its active volcanic landscape

• Guided walk across volcanic terrain and crater viewpoints

• Swim stop at Palea Kameni natural hot springs

• Views of Santorini’s cliffs and caldera villages from the sea

• Optional cable car access from Fira Old Port

• Short, half-day excursion ideal for flexible schedules

• Unique opportunity to experience volcanic waters up close

What’s included

• Boat transportation to volcanic islands

• Tour escort or basic guiding assistance

• Access to Palea Kameni hot springs swimming area

• Foam pool noodles (where provided by operator)

• Basic onboard assistance and safety support

• Return boat transfer to Santorini Old Port

What’s not included

• Entrance fee to the volcano (paid on-site)

• Cable car ticket to/from Fira Old Port

• Towels, swimwear, and personal items

• Food and drinks onboard

• Optional gratuities

• Hotel pickup and drop-off

Itinerary

The tour begins at the Old Port of Fira, where guests either descend via cable car or walk down to the harbor before boarding the boat. Once underway, the vessel crosses the caldera toward Nea Kameni, the volcanic island formed by historical eruptions.

Upon arrival, guests disembark for a guided walk across the volcanic terrain. The path leads through rugged lava fields and up toward viewpoints overlooking the crater, with commentary provided about the island’s geological formation and volcanic activity.

After returning to the boat, the tour continues to Palea Kameni, where guests can swim in the natural hot springs. The warm, mineral-rich waters are located just offshore, requiring a short swim from the boat to reach the warmer areas.

Following the swim stop, the boat returns to Santorini’s Old Port, where the tour concludes.

Who is this experience best for

This experience is best suited for travelers who want a short but active introduction to Santorini’s volcanic landscape. It is ideal for visitors interested in light hiking, swimming, and geology, as well as those looking for a half-day activity that combines sightseeing from the sea with hands-on exploration. It also suits cruise passengers and travelers with limited time on the island.

Insider notes

The volcano walk takes place on exposed terrain with little shade, so sun protection and water are essential. The hot springs area is not a conventional beach and requires swimming from the boat, which may not be suitable for non-swimmers or those uncomfortable in open water. Sea conditions and wind can affect timing and comfort during both the boat ride and swimming stop. Cable car queues at Fira Old Port can be long during peak season, so timing should be planned carefully when coordinating with other activities or departures.

This tour is sold by Viator.