Water activity

Cruise around Santorini’s caldera, hike a volcano, swim in hot springs, and enjoy a second swim near Thirassia, all while admiring the island’s stunning volcanic landscape.

About this activity

Free cancellation: Cancel up to 24 hours in advance for a full refund
Reserve now & pay later: Keep your travel plans flexible — book your spot and pay nothing today.
Duration 6 - 10 hours: Check availability to see starting times.
Live tour guide: German, Spanish, English, French, Italian, Greek
Pickup included: Pickup takes place from a centralized pickup point near to your hotel. You will receive an email with pickup details . Pickup times: NST Travel Agency Oia: 8:25 am, Imerovigli Bus Stop: 8:50 am,, Firostefani Central Square: 8:55 am, NST Experiences (Fira Departure point): 09:00 am, Kamari Erotokritos Cretan Bakery: 8:45 am, Perissa Meltemi Village: 8:45 am, Akrotiri Mathios Village: 9:00 am , Megalochori The Family Bakery : 09:10 am Pyrgos Restaurant :09:10 am Please make sure to be at the meeting point on time,and find your NST Bus. Derarture from Athinios Port{New Port of Santorini} at 09:45 am {You must be at port at 09:30am}

Highlighted reviews from other travelers

Jo – United Kingdom

I did the volcanic Islands cruise with hot springs visit yesterday and it was brilliant. The guide Yannis was knowledgeable and friendly, and I was very impressed that he did the commentary in English and French. The boat was clean and had a very well stocked bar with reasonable prices given you're a captive audience. I was also impressed that the crew wouldn't let people do the swim if they didn't think they were strong enough swimmers - they showed good care for everyone's safety. The atmosphere on the boat was fantastic as we did the cruise at the end and the music was great fun - I loved it. The only slight challenge was the transportation there and back - it was a little chaotic at the port working out which minibus I needed to get in, and my pickup in the morning was supposed to be at the same place as the trip the day before but there were different places to wait so it turned out I was in the wrong one, but that didn't detract from the overall experience. Would 100% do again!

Christopher – United Kingdom

I would recommend the experience to anyone. The boat ride was lovely, volcano tour was a nice walk, not too challenging. The hot springs were nice, have to swim a bit before you hit the springs which are nice. Would like a towel and a hoodie to warm up once you get back on board. Thank you to the tour team.

Itinerary

Starting/pickup location
Depends on the selected option
Sailboat
(30 minutes)
Nea Kameni
Free time
Santorini Volcano
Hiking
Optional
Palea Kameni
Swimming
Transfer
(30 minutes)
Thirassia
Swimming (30 minutes)
Transfer
(30 minutes)
Oia
Optional
Transfer
(30 minutes)
Arrive back at:
Thera

Main sites passed

Other sites passed

For reference only. Itineraries are subject to change.

Highlights

See the famous volcano and opt for hiking uphill to the crater
Swim in volcanic sulfur waters at the Hot Springs
Thirassia bay for a second swimming break
Experience a spectacular sunset in Oia
Enjoy a boat cruise in the Caldera of Santorini

Full description

Set sail from Athinios Port on a traditional wooden boat and explore the natural wonders of Santorini’s volcanic landscape. With live commentary on board, you'll journey through the heart of the caldera and visit iconic spots shaped by volcanic activity.

The first stop is Nea Kameni, the island with the still-active volcano. You’ll have the chance to hike to the crater at your own pace, enjoying panoramic views and witnessing the power of nature up close. Please note that this hike is unguided, so extra care should be taken during your walk.

Next, the boat will take you to Palea Kameni, where you can enjoy a rejuvenating swim in the natural hot springs, known for their high sulfur content and healing properties. Be aware that the mineral-rich waters may stain light-colored swimwear.

The boat will stop in the bay of Thirassia for a second swimming break (weather permitting). Take a dip in the Aegean and soak in the tranquil atmosphere around this traditional island from the water.

The cruise continues with a scenic sailing tour of the Caldera, where you'll be able to admire the majestic volcanic cliffs and whitewashed villages perched above the sea. The tour concludes at Athinios Port, with an estimated return time of approximately 15:45.

This is a memorable opportunity to witness the unique geological beauty of Santorini, combining adventure, relaxation, and stunning views.
If you book the extension option the boat will also take you to a port where a comfortable bus will be waiting to transport you to the mesmerizing village of Oia. Immerse yourself in its unique charm as you enjoy 2-3 hours of free time to wander through the winding streets, soak up the breathtaking views, and witness the magical sunset that has made Oia world-famous. As your time in Oia comes to a close, hop back on the bus for a relaxed journey back to your original destination. Reflect on the incredible memories you’ve made, carrying the beauty of Santorini in your heart. Please meet your bus in Oia at the meeting point 15 minutes after sunset.

Includes

Roundtrip bus transfer from a pickup point nearest to your hotel (if option selected)
Local guide on boat
Audio commentary on the boat
Stop at the volcano with optional hike
Swim stop at the Hot Springs
Swim stop at the Thirassia island {for 6 hours Cruise from Old Port or New Port}(if option selected)
Free time and Sunset viewing at Oia village (if option selected)
Foam pool noodles

Guided hike on the volcano
Lunch
Drinks (available to buy at the onboard bar)
Volcano entrance fees (€5 cash only)
Cable car ticket (€10 each way)
Personal expenses

Not suitable for

People with mobility impairments
Wheelchair users

Important information

What to bring

Sun hat
Towel
Hiking shoes

Not allowed

Pets

Know before you go

- Pickup takes place from a central pickup point in each village near your hotel.
- If you book the option with the sunset at Oia please note that after getting back to the port you will be transferred by bus to Oia.
- This tour involves a moderate amount of walking. If you take part in the volcano hike, some walking will be on uneven surfaces.
- You might get wet on the boat depending on the weather conditions.
- During summer, the boat is usually crowded but there is a seat for every passenger.
- At hot springs, non-confident swimmers can stay on the boat. Please note that the boat is equipped with life jackets that are only provided in case of emergency.
- Due to Port Authorities' restrictions, the stop at the hot springs is limited to 30 minutes.
-Please note that the departure time is 9:45 a.m., and you must be at the port by 9:30 a.m. to board the boat.

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Santorini: Volcanic Islands Cruise with Hot Springs Visit