Caldera Boat Tour

Overview

A caldera boat tour is the quintessential Santorini experience, offering a half-day or full-day cruise around the volcanic islands within the flooded crater. Tours typically visit Nea Kameni volcano, the Palea Kameni hot springs, and optionally Thirassia island, culminating in a sunset viewing from the water.

Highlights

• Volcano hike: Dock at Nea Kameni and hike to the active crater with steaming fumaroles.
• Hot springs swim: Swim in the warm, sulfurous waters of Palea Kameni's volcanic springs.
• Sunset from the sea: Watch the famous Santorini sunset from the caldera waters, with the cliff villages glowing above.

History

Boat excursions around the caldera have been offered since the early days of Santorini tourism in the 1970s. The tours follow routes that were once used by fishing boats and cargo vessels servicing the volcanic islands. Today, options range from large catamaran cruises to traditional wooden caiques and private yacht charters.

Visitor Tips

• Tip 1: Choose a sunset tour for the most dramatic experience — departures typically at 14:00–15:00 for 5-hour tours.
• Tip 2: Bring a towel and dark swimsuit for the hot springs, plus sun protection — there's limited shade on most boats.
• Duration: 3–5 hours.