Santorini Caldera Cruise Tour (Volcano, Hot Springs, Thirassia)

6 hoursHotel pickup · Selected hotels (check when booking)Guided in EL, English, Italian, French, SpanishRated 4.4/5 · 1,451 reviews
From $40 per personRated 4.4/5 · 1,451 reviewsFree cancellation up to 24 hours before
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About Santorini Caldera Cruise Tour (Volcano, Hot Springs, Thirassia)

This boat tour of the Santorini caldera combines a guided hike on the volcano, a swim in the hot springs at Palea Kameni and free time on the island of Thirassia. It has more than 1,400 reviews and a 4.4 rating.

The tour lasts about 6 hours. You can book it with pickup from Athinios Port or without pickup, starting from the Old Port of Fira. A tour escort guides you throughout.

Itinerary

  1. Santorini Volcano (1.5 hours)
  2. Palea Kameni (30 minutes)
  3. (2 hours)

What’s included

  • Guided volcano hiking tour (with expert insights into its history and geology.)
  • Foam pool noodles for added support while swimming at the hot springs.
  • Pick up and Drop off included (if the "with pickup" option is selected)
  • Visit to the hot springs (for a unique swimming experience in sulfur-rich, warm waters.)
  • Tour escort (to guide and assist throughout the trip.)

Meeting point

If you choose the "without pickup option," the tour starts at the Old Port of Fira, accessible by cable car (10€ per way) or a 30-minute walk down the steps. The meeting point is at the "Santo Star" office. Please arrive 45 minutes before departure. Cable car users should plan for queues.

What to expect on the day

The first stop is the volcano, where you have 1.5 hours to hike its rugged trails with the escort, who shares the history of its eruptions. The moderate hike ends with panoramic views from the top.

Next the boat anchors 30 to 50 meters from the hot springs at Palea Kameni for about 30 minutes, and you swim across to the warm, sulfur-rich water. The last stop, of about 2 hours, is Thirassia, where you can explore the villages or eat at a taverna before returning to port.

Prices and extra costs

  • Included: Guided volcano hike, tour escort, hot springs visit with foam pool noodles for support, and pickup and drop-off if you book the pickup option.
  • Paid at check-in: A 5 euro entrance fee to access the volcano. If you start from the Old Port of Fira, the cable car costs 10 euros each way.
  • Not included: Food and drinks, towels and swimwear, and pickup if you book the option without it.

What to bring

  • Sturdy shoes, a sun hat and water for the volcano hike.
  • A dark swimsuit and your own towel, as sulfur can stain light fabrics.
  • Sunscreen, or a light jacket if it is windy.

Tips for a better day

  • Arrive early: Without pickup, be at the Santo Star office in the Old Port of Fira 45 minutes before departure and allow for cable car queues or a 30-minute walk down the steps.
  • Hot springs swim: The swim to the springs is recommended only for strong swimmers because of the distance.
  • Snacks: A minibar on board sells water and snacks, or bring your own.

Who it’s best for

Best for: Budget-minded travelers and strong swimmers who want to walk on the volcano and see more of the caldera in one day.

Consider another option if: You want food and drinks included and a more relaxed pace. The half-day catamaran cruise includes a meal, open bar and hotel pickup.

Restrictions

Travelers should have at least a moderate level of physical fitness. Swimming in the hot springs is not recommended for pregnant travelers or those with heart issues or serious medical conditions, and is recommended only for strong swimmers.

Cancellation policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

FAQ about Santorini Caldera Cruise Tour (Volcano, Hot Springs, Thirassia)

How long is the caldera cruise?

The tour lasts about 6 hours.

Where does the tour start?

With the pickup option, from Athinios Port. Without pickup, from the Santo Star office at the Old Port of Fira, where you should arrive 45 minutes before departure.

How do I get down to the Old Port of Fira?

By cable car, which costs 10 euros each way, or a walk of about 30 minutes down the steps.

Is there an entrance fee for the volcano?

Yes. A 5 euro entrance fee is required to access the volcano and is not included.

How long is the volcano hike?

You have 1.5 hours on the volcano for a moderate guided hike to the top.

Do I have to swim to the hot springs?

Yes. The boat anchors 30 to 50 meters away, so you swim to the springs. Foam pool noodles are provided, but it is recommended only for strong swimmers.

What should I wear in the hot springs?

A dark swimsuit is recommended to avoid sulfur stains. Bring your own towel.

Is food included?

No. Food and drinks are available to buy from the minibar on board, or you can bring your own. Thirassia has tavernas.

Who should avoid the hot springs?

Pregnant travelers and anyone with heart issues or serious medical conditions.

What is the cancellation policy?

You get a full refund if you cancel at least 24 hours before the scheduled departure time.