Santorini Volcano and Hot Springs Cruise Tour from Fira Old Port

Santorini, Greece

Very popular!

5+ bookings in the past 6 hours.

3 hours (approx.)
Mobile ticket
Offered in: English

Why travelers loved this

4.2

· Nicole_P ·

Jun 2026

This was the perfect trip for us. Very reasonable price - clean boat with a great guide and 3 hours was plenty of time to see the volcano and soak in the hot springs. I appreciated this trip for being shorter in time ( and therefore price ) to see the amazing views with a clean lovely boat and great crew !

· Stephanie_F ·

Jul 2026

We had an amazing time! The hike up to the volcano was beautiful, and our tour guide was fantastic—knowledgeable, friendly, and made the experience even better. After the hike, we relaxed at the hot springs and enjoyed swimming. It was the perfect way to end the day. I highly recommend this tour, especially for the price. It was an incredible value!

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Overview

Discover a side of Santorini that few other visitors get to experience—and make exploring beyond the mainland easy—on this half-day tour. Look forward to visiting Santorini's unique volcanic landscapes, and head to two islets accessible only by boat. Sail to Nea Kameni to hike up to the crater of the active volcano (entry tickets own expense), and to Palea Kameni, where you can soak in natural hot springs.

Escape Fira’s crowds with a boat tour to two uninhabited isles
Learn insider facts and stories from your guide as you go
Foam noodles are provided to assist swimmers at the hot springs
A half-day tour leaves your morning or afternoon free

What's Included

Guided volcano hiking tour (with expert insights into its history and geology.)
Visit to the hot springs (for a unique swimming experience in sulfur-rich, warm waters.)
Tour escort (to guide and assist throughout the trip.)
Foam pool noodles for added support while swimming at the hot springs.

Food and beverages (available for purchase or bring your own)
Towels and swimwear (guests must bring their own)
Cable car ticket (10€ per person, for those opting to use it)
Entrance fee - Volcano

€5.00 per person

Meeting and Pickup

Meeting point

Santorini Old Harbor
Fira 847 00, Greece
The tour begins at the Old Port of Fira, accessible by cable car (10€ per way, every 15 mins) or a 30-min walk down the steps. The meeting point is the "Santo Star" office. Arrive 45 mins before departure. Cable car users should plan for possible queues. Walkers, wear comfortable shoes.

End point

This activity ends back at the meeting point.

Itinerary

Make your own way to the Old Port of Fira in Santorini and board the boat for the journey to Santorini's volcano, Nea Kameni.

Upon arrival, step ashore and follow your guide on a walk along the volcanic path, while they provide background information on the island’s geological wonders. Continue to the volcano's summit (additional admission fee), and take in the sweeping views of this otherworldly landscape.

After returning to the boat, the next stop is the island of Palea Kameni, home to natural hot springs. There’s enough time here for strong swimmers to swim to the thermal waters and soak up their healing properties.

After a boat ride back to Santorini, your tour ends with a drop-off at the Old Port of Fira.

Santorini Volcano

1 hour 30 minutes • Admission Ticket Not Included

Palea Kameni

30 minutes • Admission Ticket Free

Additional Info

Confirmation will be received at time of booking
Not wheelchair accessible
Travelers should have a moderate physical fitness level
For the volcano tour, wear comfortable shoes, a sun hat, and bring water.
Dark swimsuits are recommended to avoid sulfur stains.

To avoid delays, arrive at the cable car or start walking 45 minutes before departure.
A minibar is available on board for water and snacks.
Bring sunscreen for sunny days or a light jacket if it’s windy.
Swimming in the hot springs is not recommended for pregnant individuals or those with heart issues or serious medical conditions.
This tour/activity will have a maximum of 150 travelers

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Cancellation Policy

You can cancel up to 24 hours in advance of the experience for a full refund.

Traveler Photos

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Gallery picture 5 (from a traveler's review)

Featured review

Amanda_P

A beautiful way to see the island! Highly recommend this quick 3-hour tour to hike the volcano (do not wear flip flops!) & swim in the hot springs. We hiked the volcano but didn’t swim because it was a chilly day but loved seeing the sights on the boat. The crew was fantastic. The transfer from Oia to the port was hugely helpful! Ensure you check the Viator & WhatsApp for communication from the company about your transfer! A 10/10 experience!

Reviews

4.2

based on 1,276 reviews

Total reviews and rating from Viator & Tripadvisor

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Sort by: Most insightful

Our family loved this...

Li_M, Jul 2026

Our family loved this expedition. The boat is beautiful. The hot spring is unique. This is the hot spring can only be accessed by swimming in ocean. So fun! Highly recommend to explore outside Santorini!

Great time!

Stephanie_F, Jul 2026

Great experience

Donna_n, Jun 2026

Really nice little tour, lots to see and do, enjoyable for all the family. Didn’t realise you had to swim in open sea from boat to hot springs, noodle float device given for small children. Knowledgeable friendly guide

Ehhh. Not worth the money

Michael_R, Jun 2026

The tour was kind of a waste of time. A crammed boat ride to walk up a steep slope to peer into a hole wasn’t all that. The “hot springs” wasn’t hot, you had to swim to it with passengers from 6 other boats. It was crowded and not worth the 30 minutes they allowed. Save your money and skip this tour.

Great experience in a short amount of time

David_M, Jun 2026

The tour was well done. Great communication before and during the tour. The boat ride was enjoyable, the volcano climb was not that bad, we had a great breeze to keep us cool. Great scenery up top but not much activity from craters to see. Go to Hawaii if you want to see active volcanoes. The swim was short but very refreshing, was expecting warmer water, changed a little but not much. Crew was great and very friendly. Would do it again.

Really nice half-day on...

Tessly_D, Jun 2026

Really nice half-day on the water! Wear sunscreen and prepare to walk a lot, but the views of Santorini from the boat and the volcano are impressive. We didn’t go in the hot springs because the water you have to go through to get there was too cold for us, but it was pleasant even just sitting on the boat and watching. Friendly staff!

Nice cruise to the...

Kevin_P, Jun 2026

Nice cruise to the volcano from the old port. Hike up the volcano was not too hard. Very interesting to feel the heat that the active crater is giving off. Refreshing swim to the hot springs, the hot springs are not overly hot, but very enjoyable. I wish we had just a bit more time in the water.

Perfect for us trip !

Nicole_P, Jun 2026

Wonderful time! Our three...

Grachelle_B, Jun 2026

Wonderful time! Our three teenagers climbed quickly to the top of the caldera and we slowly followed. It was a nice hike with a beautiful view from the top. The hot springs was amazing! The further you swim, the warmer the water. Absolutely would recommend this for anyone that loves adventure and outdoor activity.

Was fun but not exactly what we were expecting.

Danica_O, Jun 2026

This was a fun little experience! We went mid June and the water was kind of cold a rough with the “hot” springs being warm but definitely not hot. The first stop is an uphill walk to the top of the island in the middle of the caldera. It was doable in sandals but I would recommend sneakers or more supportive shoes of some sort. It would have been nice to have a guide showing us where to go and give us some details about the volcano and the island, however, that did not happen. It was a beautiful view, however, it was crazy windy and not exactly what we expected. The second stop is a swim to the hot springs. The swim isn’t terrible but GET A NOODLE. The noodle made it a more relaxing experience especially considering the water can be pretty choppy until you reach the spring. Would recommend booking this if you enjoy a hike and swimming. If you’re on the fence, save your money and just take the cable car up and down to get the experience of the port.

Caldera & Hot Springs

Marc_N, Jun 2026

Really fun experience. The volcano guide explained the history of the island very well, giving us an appreciation for the causes and reasons for how Santorini came to be. She also was very clear and consistent about timing and directions to make sure no one got lost on the climb. I also loved the quick swim in the hot springs. We were allowed to jump off the boat (you don't have to, but it's a blast) and then swim to the springs, which isn't far - you don't need to be a strong swimmer, and they will give you a pool noodle if you aren't. The spring itself is a unique experience (if you haven't done it) with a goopy clay on the bottom (not my area of experience - all I can say is that it's neat). The springs themselves are not that hot- you can find a few jets here and there that are warm, but most just warmer that the ocean. But definitely a cool experience. Lastly, the boat is great, the captain gives lots of instructions to ensure everyone knows what is going on, and you can buy drinks (cash only) if desired. Docked 1 star for 3 reasons. First, the initial meet was a little disorganized; we had to recognize the guide and just follow her when she started going to the boat, there was no "hey, everyone on the volcano tour, please follow me" or anything, so it was a little unclear that we were even in the correct line until our ticket was checked when we got on the boat. Second, several other locals mentioned that some tour guides cook an egg by digging into the active caldera; our guide did not do that, though she did dig and let us feel the heat. Finally, the event description should be very clear about what you will actually see - the active caldera (there are inactive ones) has some sulfur stains and you can see a few wisps of smoke going up, but it is not particularly impressive outside of it's significance and the clear heat coming through the ground. All that said, it was fun to do and I would do it again.

Amazing

Niurca_J, Jun 2026

It was an amazing experience and Mary was wonderful. Very knowledgeable. It was wonderful. The wines were very good.

Fun experience worth it!

tiffani_z, Jun 2026

The boat ride was good with a friendly crew. The hike was guided but squeezed for time if you stay with them. We were given a time to be back on the boat and we went at our own pace. The hot spring was warm- just look for the bubbles. You don’t need water shoes but the bottom is slick. It was well worth the 588 steps down to the port.

Wouldn’t recommend at all

Liam_C, Jun 2026

Firstly I would like to say the travel guide we had for the day was great BUT the overall running of the trip and price is very misleading . We paid for our tickets but forgot to state you would have to pay €10 euros each way up and down the railcar and then €5 each to go onto the island after paying for our tickets , don’t think the pricing is accurate when it’s all added up. After all the walking around the island you’re taken to a shallow bit of the ocean for a swim , could of saved all that money and sat by the pool

The activity involved a...

Elizabeth_L, Jun 2026

The activity involved a hike and then a swim. It was not clear from the instructions that the only place to change was in the small, one-stall bathroom on the boat. Probably best to just wear your swimsuit for the whole excursion.

Great hike followed by the hot springs swim

Sandra_F, May 2026

This was a fun experience with my husband, 24 and 22yr old sons. We are a pretty active family and enjoyed the hike to the top of the volcano. But it may be a little tough for those who are not keen hikers. We would have liked more time at the top. The swim in the hot springs started with a surprise jump off the side of the boat, the swim itself was very manageable , and we could feel the change in water temps as we passed over the hot parts of the springs. Those who preferred not to swim stayed in the boat. The tour guide was very nice and we learned a lot about the volcano.

Amazing

Valentina_L, May 2026

Not a single bad word. You would think 3 hours is not enough, but it’s plenty. Plenty to see, plenty to experience and to learn. Loads of time to do stuff in your pace too. Tour guides friendly and knowledgeable. Highly recommend 🫶🏻

Get there early and talk...

Olivia_R, May 2026

Get there early and talk to the office. They give you a sheet of paper to board with. Pay attention for when they tell people which boat

Bad just walk not intéressé

Helene_L, May 2026

The walk was To Difficult and no câble like mention The water was no very hot. We not recommand this activity

Super unique excursion in Santorini!

Miranda_D, May 2026

This is a must do for a unique experience in Santorini! Getting down to the bay was quite a challenge though…if you’re walking down please add a good 15 minutes if you’re briskly walking…it’s a LOT of stairs. But DEFINITELY take the cable car back up after!!! We boarded a large boat that resembled a pirate ship and sailed to the volcano first. We were told that when you got close to the volcano you would smell the sulfur and the rock would actually be warm (neither were true for our group) however it was still a neat little hike where you could go off on your own a bit. We then sailed over to the area where you could hop in (with pool noodles provided) and the water was extremely cold! But as you swam closer to the hot springs you could literally feel it getting warmer. It was so crazy honestly. We wrote our initials in the mud on a rock and then headed back to the boat again. The only thing was that we didn’t bring a towel (we thought they were provided) so it was a really chilly ride back all wet! We thought it was a really cool and unique experience!

Cool trip!

Gretchen_G, May 2026

The boat is lovely and it was really cool walking around the volcanic island. I had so much fun jumping off the boat into the Aegean (only a little chilly) and making the short swim to the hot springs off the island. Our guide was great and very personable too. I have issues with motion sickness but the trip to and from the island was short enough that I was ok. Bring a light jacket as it can be windy on the sea while traveling to/from the port.

Fun Excursion

Elyse_W, May 2026

Great very enjoyable and knowledgeable People very nice , I would recommend it . Beautiful boat. Make sure to bring good walking shoes and water shoes

Good value .Great views of all of Santori

Heather_M, May 2026

The hike to the top of the volcano was fine for the average person but hard if you have any mobility issues especially in the heat. The hot springs weren't as hot as expected ...more like kind of warm. The cold seawater to get to the hotsprings was refreshing after the hike to the volcano. There is no shade so bring plenty of water if it is hot out.

Fun

Lynn_H, May 2026

Comfy walking shoes are a must. Bring a warm jacket if it’s chilly. Tie long hair back if it’s windy

Nice way to spend a few hours

Emily_O, Apr 2026

Nice tour. Happy to have the plan for the afternoon. Wear sturdy shoes for the hike up the volcano. Ferry ride to hot springs was beautiful

Great boat ride with a...

Ryan_F, Apr 2026

Great boat ride with a good hike to the volcano. We did not swim because it was cool and raining on the tour.

Great boat ride!

Michelle_D, Apr 2026

Beautiful boat ride. Friendly staff. Volcano hike is challenging but you can choose how far you go. Swim was easy although water was chilly until you got to hot spring part. Really enjoyed the boat ride and seeing Santorini from the water. Great restaurants in old port when you get off boat.

Tour not worth what you pay for!

Zulfiqar_D, Apr 2026

Good place to go, but don’t need a tour or a tour guide as such. 30€ per person for a short hop to the island and then pay 5€ per person to climb the volcano is expensive. Also, to reach you have to take a cable car which is 10€ one way which is insane.

Our family really enjoyed...

Jay_J, Apr 2026

Our family really enjoyed this tour! The ride on the boat itself was a highlight. The hike to the top of the volcano provided some breathtaking views of Santorini! The hike wasn’t easy but worth every step. While not every member of our bunch swam at the hot springs, the two who did absolutely loved it.