Santorini Tour of Caldera with Glass bottom Boat
Overview
Available languages
5 hours 30 minutes
Mobile ticket
Τhis option is the most complete! allows you to visit all the islands of the Caldera. Ideal for cruise travelers, as the boat tour begins at the port of disembarkation. You can relax and drink your coffee under unique rocks with the volcanic rocks as a background.
Active volcano island, volcanic hot springs you can not approach easily. More over Thirassia give you an idea of Santorini like 30 years ago.
If you are a family with kids, the kids will go crazy with the glass bottom of the ship!
without spending a lot, keep unforgettable images from Santorini.
Additional Info
Infants and small children can ride in a pram or stroller
Service animals allowed
Specialized infant seats are available
Not recommended for travelers with poor cardiovascular health
Suitable for all physical fitness levels
What To Expect
Santorini Volcano
The first stop is the active volcano where you can visit 4-6 craters. follow the leader who will lead you to the top, it will take you about 20 minutes to climb. It is the youngest island created after the big explosion. You have 1 hour and 15 minutes to walk, take photos and admire a unique landscape that reminds you of another planet!
Hot Springs
After the visit of Nea Kameni,the boat continues to the island of Palaia Kameni where the Hot Springs are located. The boat anchors a few meters outside the small bay of Agios Nikolaos,it lowers down a ladder in the water and from there you can swim a distance of about 30 meters to get to the famous mud baths of Palaia Kameni for which are believed to have beneficial abilities for the skin and other diseases. The water temperature is 30-35 degrees but it constantly mixes with seawater. The boat remains here for about 30 minutes for swimming.It’s quite a time since there is no beach on the small island where you can stay for a while.
Options
Santorini Tour of Caldera with Glass bottom Boat
What‘s Included
Local guide
Air-conditioned vehicle
Restroom on board
Swimming Noodles
Lunch
Entrance ticket to Volcano
Snacks
Transfer
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Reviews
5 reviews
Total reviews and rating from Viator & Tripadvisor
It's not worth it, look for options in Catamarca.
gabrielaceciliaf,Jun 3, 2026
- Review from Tripadvisor
3.00Honestly, it's not worth it; while it's nice to see the island from the sea, like Oia, Fira, etc., we didn't like the rest. You arrive at the volcano island, walk to see 'nothing', then they take you to the hot springs area, they leave you far away, you have to swim there, you arrive and in 5 minutes you have to swim back to the boat (don't even try it if you can't swim or aren't in decent shape), then they stop so you can see the crystal bottom... what do you see? Nothing... three stones that look better from the edge of the boat. Then they drop you off on an island that is quite ugly compared to how beautiful Santorini is. They recommend a place to eat, expensive and not worth it (there are other nicer options). You return to the boat... they tell you that you are going to see the sunset, but in reality, they take you by bus, leaving you 3 hours early in Oia... in short, very 'cheap tour'.
Disappointed 😞
voyagedu69,Jul 13, 2025
- Review from Tripadvisor
2.00In useless glass background nothing is visible even a fish. Be careful the agency does not tell you that the visit of the volcano is extra charge. What's wrong?
Very nice tour and friendly staff, amazingly beautiful views
Nicholas K,Jun 5, 2025
- Review from Viator
5.00Very nice boat tourthe staff is very friendly and helpful, describing the various points very nicely, and very clear about meeting points and times at each of the 4 stops. The views from the upper deck are magnificent, islands, boats, the beautiful white Santorini houses look magnificent. The swimming is very nice. The lower deck has glass bottom to see the water that really shows the boat speed and the depth of the water and sea floor at the stop where the water is crystal clear. Snorkeling at Thirasia at the stop place near the restaurant is very beautiful, crystal clear waters, saw hundreds of fish (must bring swimming goggles and swim shoes because there are small rocks instead of sand). Saw white fish (larger, maybe 10 inch long, some 2 inch) with gray lines or gray dots grazing on the rocks, smaller orange and black fish (4 inch), small green fish (4 inch), long pencil like fish (25 inch long, 1cm wide) that stay very still then start wiggling and swim a little then stand very still, it was a very nice surprise to see, all fish within 10 meters of the restaurant's wall where the water is less cold and less deep. The meeting point for the boat tour is at the Old Port, not accessible by car, only by cable car (10 euros each way), by donkey (6 euro each way) or by hundreds of stairs between the cliff top and the sea level (easy steps, small, not tall steps). The views of all islands, especially of the Santorini cliffs and white buildings are absolutely spectacular. We took the day boat tour, not the evening tour, and it was 5 hour and a half.
Great places, disappointing experience
Coki67,Jun 10, 2024
- Review from Tripadvisor
2.00Although the places are lovely, the disappointment came from the lack of kindness of the crew and the dirty and smelly bathrooms.
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Operated by Dakoutros Bros J.V.