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Tours

Boat Tours in Santorini

Volcano & Hot Springs Tours

Glass-Bottom Boat Trip to Santorini Volcano, Hot Springs, & Therasia

6 hours - 9 hours
Instant confirmation
English and Greek speaking tour guide
Max 130 people
Vessel information The cruise takes place on a Glass Bottom Boat
Electronic voucher (e-Ticket) Show the voucher on your mobile device to enjoy the activity
Free cancellation Up to 100% refund according to the cancellation policy
Book Now & Pay Later Secure your spot while keeping your plans flexible. Pay a few days before your experience.
Lowest Price Guarantee Book with confidence! Find a lower price, and we'll refund the difference.
Starting location Old Port or Athinios Port
Starting timeDeparture at 10:45, Arrival at 16:45
Meeting info If you select the option with the transfer, there are pre-defined pick-up/drop-off locations, at convenient central spots in most villages. After the booking, you will be advised of a pick-up location that is closest to your hotel or most convenient for you! Please note that transfers from Oia and Baxedes are not provided.
Embark on a unique glass-bottom boat adventure to Santorini's volcanic caldera. Explore the active volcano, soak in therapeutic hot springs, and marvel at underwater wonders through the boat's transparent floor.
Important note: Due to safety measures currently in place, the port in Therasia will remain closed until the end of May. As a result, the volcano tour will not include a stop at Therasia during this period. However, there will be an additional stop near Therasia, with the opportunity for a second swim, in addition to the one at the Hot Springs.

Join a 6-hour or 9-hour shared tour across Santorini's caldera, where you will explore the island's stunning vistas and vibrant marine life from a unique perspective. The glass-bottom boat offers a clear view of the underwater world, allowing you to see fish and other sea creatures without getting wet. Along the way, you will also visit the island's famous Volcano, take a dip in the Hot Springs, and explore Therasia Island.

The 6-hour half-day cruise gives you flexibility in terms of departure times and locations. If you choose the transfer service, you will depart from Athinios Port at 10:20 am. Alternatively, if you opt to meet us at the Old Port, the tour starts at 10:45 am. The 9-hour full-day cruise includes a transfer service and departs from Athinios Port at 10:20 am, wrapping up the day with a breathtaking sunset in Oia!

Your adventure begins with a hike to the volcanic crater, at Nea Kameni Island! You will have about 1 hour and 15 minutes to make the round trip, which takes about 20 minutes each way on a well-maintained path. The panoramic view from the top is a rewarding experience! The next destination is Palaia Kameni Island, where you will find the famous Hot Springs. The boat anchors near the small bay of Agios Nikolaos, where you can swim a short distance to reach the warm, sulfur-rich waters. These waters are typically 3 to 4 degrees Celsius warmer than the surrounding sea temperature. Enjoy a relaxing soak for about 30 minutes before you move on. The next stop is Therasia Island, where you will have about 2 hours of free time. Explore the charming island, swim at Korfos Beach, or enjoy a meal at a local tavern. Following that, the boat sails beneath the village of Oia, providing you with the opportunity to capture photographs with the iconic white houses of Oia in the background. Then, the boat returns to the Old Port for passengers who opted for this departure point, while those with transfer service continue to Athinios Port.

If you are on the 9-hour full-day cruise, your journey doesn't end there! A bus will be waiting at Athinios Port to take you to the picturesque village of Oia, where you can wander the narrow streets, shop for unique souvenirs, and watch the famous sunset. The bus will then return you to your starting point, concluding a day filled with unforgettable memories!

Comparing the 6-hour and 9-hour options, the shorter cruise includes a hike to the volcanic crater on Santorini, a swim in the hot springs of Palaia Kameni Island, and a couple of hours on Therasia Island before returning to the port. In contrast, the 9-hour full-day cruise, which departs from Athinios Port, extends the adventure by including a visit to the village of Oia. After exploring Therasia, participants on the full-day tour are taken by bus to Oia to enjoy its scenic streets and iconic sunset, making for a more comprehensive and leisurely exploration of Santorini. Both options provide rich experiences, but the full-day tour offers additional time in Oia for a complete day of discovery.

Whether you choose the half-day or the full-day option, the glass-bottom boat tour offers a truly unique way to experience the magic of Santorini!

What you will see/visit
Booking options
Select Date
Select Participants
Tour Details
Inclusions
  • English and Greek speaking tour guide
  • All taxes
  • Option available that includes pick-up/drop-off at central points in most villages
  • Swimming noodles
What to bring
  • Swimsuit (The sulfur water may stain your swimsuit, so a dark-coloured one would be suggested)
  • Towel
  • Sun hat
  • Comfortable shoes
Exclusions
  • Gratuities (optional)
  • Cable Car fee: 10€ /per person
  • Volcano entrance fee: 5€ /per person . You can book it separately here
  • Towels
  • The traditional meal in Therasia island is not included in the price of the tour (optional)
Additional info
  • Children of the age group 6 to 12 years old will be charged half ticket
  • Subject to favorable weather conditions. If canceled due to poor weather, you will be given the option of an alternative date or full refund
  • A moderate amount of walking is involved
Reviews by real customers
4.5
Great based on 25 verified reviews
Traveler StoriesWhat travelers experienced
JM
Jason M. United States, 8 Nov 2024

A must do on your list and it's a great experience 👍

EL
Ellen L. United Kingdom, 4 Nov 2024
Island boat tour

A nice excursion around the islands

AH
Anna H. United Kingdom, 20 Oct 2024

The tour itself is a lovely experience, but I would not recommend booking the transfers, ours was full of confusion which caused stress, very disorganised.

VN
Vinh N. United States, 21 Sep 2024
Full day 9 hr cruise

We booked the 9 hour cruise with shuttle transport and it was very reasonably priced for what we got. It was a very full day of adventure ending with transport to Oia for the sunset. It was a great experience. Be ready for an all day tour!

See more reviews
Good to Know

Voucher

Once your booking is complete, you will receive the voucher, which includes the meeting point, time and supplier’s contact information, at your email address. You need to have it with you, in paper form or in digital form.

Cancellation

For cancellations made at least 24 hours prior to the scheduled day, 100% of the fare is returned and there will be no additional costs. For cancellations made less than 24 hours prior to the scheduled day or no-show, the fare is not refunded. For date changes requested within 24 hours of the scheduled trip, no refund is available. In case of cancellation due to bad weather conditions, the fare is 100% refundable.

Passport or Id

Full names of the passengers (as shown on their passport or id). Passengers need to have onboard with them their passport or id or a copy of them, in case the Port Authority runs a check on the boat. A picture on their mobile will suffice.

Frequently Asked Questions

Yes, you will hike up to the crater. The hike is about 90 minutes.

It is not difficult. You will walk a path for 45 minutes to reach the crater and then another 45 minutes to return to the boat.

Yes, it is. But do not forget to bring a hat, sunscreen and comfortable shoes with you.

Yes, you can. There is no extra charge, but you will have to carry it in your arms as the path is not suitable for strollers.

Yes, you can take part but you will not able to swim in the hot springs. Instead, on this part of the tour, you will stay on the boat (relax & sunbathe).

Yes, you can. But it will be on your own responsibility as there is no space to store it on the boat.

All boats are fitted with toilets, for the use of guests onboard.
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