15 Hot Springs by Boat Worth Getting Wet For

1.Volcanic Islands Cruise with Hot Springs Visit

★★★★★★★★★★4.4 · 10,869 reviews · 3 - 10 hours · from $29Our pick

Sail from Athinios Port on a traditional wooden boat with multilingual commentary, then walk across Nea Kameni, swim from the boat to Palea Kameni’s sulfur springs, and stop at Thirassia. Add the Oia option for free time and sunset views, with bus transfers included.

“The overall activities were great! Being able to follow the tour guide (who spoke great english) and then roam around on my own was fantastic! Starting with checking in, the lovely ladies assisted me in a few troubles to ensure everything was taken care of. One of the ladies was a part of the tour and spoke great Spanish as well. Despite the chaos of tourism, the guides remained professional and courteous. I would love to come back and sail with this team based on the experience I had. Phenomenal crew and great memories created.”

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

★★★★★★★★★★4.5 · 1,302 reviews · 6 hours (approx.) · from $42

Sail from Fira’s Old Port to Nea Kameni, hike Santorini’s volcano, swim from the boat toward Palea Kameni’s warm sulfur waters, and spend free time on Thirassia. Expect a busy boat, a short swim, volcanic views, and optional hotel pickup for an extra fee.

“Beautiful scenery Relaxing Restrooms on boat which is a great perk Just enough time at each stop so you can see it and move to next stop”

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3.Volcano and Hot Springs Sunset Dinner Cruise

★★★★★★★★★★4.6 · 1,224 reviews · 8 hours · from $106

Spend eight hours exploring Santorini by boat, with a guided hike on Nea Kameni, a swim near Palia Kameni’s sulfur springs, a second swim stop, and dinner with local wine. Guides such as Tito and Caesar add useful island and volcano background before the sunset sail toward Oia.

“I wish they would have picked us up at the hotel instead of on the side of the highway it just felt needlessly dangerous when the hotel was 2 min down the road on the same street the car was going anyway..”

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4.Santorini Volcano and Hot Springs Cruise Tour from Fira Old Port

★★★★★★★★★★4.0 · 1,214 reviews · 3 hours (approx.) · from $36

Meet at Fira Old Port for a three-hour boat trip to Nea Kameni and Palea Kameni. Your escort leads a volcanic hike, then anchors near the hot springs for a swim of 30 to 40 meters. Bring sturdy shoes, water, a towel, and a dark swimsuit.

“Amazing tour. We had a great staff and they made sure that everyone was safe and that no one unintentionally placed themselves in harms way. The tour was perfect and we met great people on it.”

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5.Santorini Port: Cruise to Volcano, Hot Springs & Thirassia

★★★★★★★★★★4.5 · 992 reviews · 6 hours · from $41

Spend six hours on a traditional-style boat visiting Nea Kameni, Palea Kameni, and Thirassia. You can hike to a volcanic crater, swim from the boat toward warm sulfur waters, eat on Thirassia, and hear commentary from guides such as Roula, Yannis, or Georgia.

“Fantastic day out on the water exploring the smaller islands of Santorini. Hike up to the active volcanic crater was very cool and I'm glad we decided to jump into the water at the thermal springs. I would recommend wearing your bathing suit (not just bringing) since you must jump straight off the boat to swim to the thermal bay and the bathrooms on board are tiny. On Thirasia the hike up the many steps was very worth it to get delicious frappes and baclava from Fyrgano up in Manolas. The tour back around the perimeter of the caldera was equally amazing with fun music, a spontaneous dance party and…”

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6.Santorini Port: 3 Hour Cruise to Volcano and Hot Springs

★★★★★★★★★★4.4 · 512 reviews · 3 - 6 hours · from $35

Sail from Fira Old Port to Nea Kameni for an optional self-guided volcano hike, then swim near Palea Kameni’s warmer waters with a pool noodle. Expect scenic caldera views, audio commentary, a 30-minute hot-springs stop, and extra costs for volcano entry and the cable car.

“Great trip, plenty of time to get up and down the volcano and a great swim in the hot springs”

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7.Hot Tub Boat Tour in London – London’s most unique tour

★★★★★★★★★★5.0 · 388 reviews · 2 hours (approx.) · from $62Top rated

Spend about two hours at Skuna Boats, including a 75-minute hot tub cruise around West India Docks and Canary Wharf. Guides such as Dom, Sarah, Harry, and Emily keep the ride social and point out photo spots. Bring swimwear, or rent towels and robes on site.

“We had the best afternoon! Dom our “skipper” was great, the experience is one of the most fun things to do in such a beautiful part of London!! Just brilliant!”

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8.Santorini Volcanic Islands Cruise: Volcano, Hot Springs and Thirassia

★★★★★★★★★★4.0 · 375 reviews · 6 hours (approx.) · from $60

Cruise Santorini’s caldera by classic wooden caïque, walk across volcanic Nea Kameni, swim near the Palea Kameni hot springs, and visit Thirassia. Spiros is one guide praised for his humor and clear explanations. Bring water, sturdy shoes, and €5 cash for the volcano.

“Agents for Viator , Santos Star were unorganized and could not find our reservation. I would suggest that you print out your confirmation as Santos has no public Wi-Fi. After looking at our information and calling someone they found that we were registered for the tour . I would not recommend this tour to the volcano and hot spring as getting to the top of the volcano was a difficult climb and while the view of Santorini surrounding islands was spectacular the volcano itself was just a rock creator. The swim at the hot spring required jumping off a boat and a swim of over 30 yards before you got…”

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9.From Old Port:Volcanic Islands Boat Trip & Hot Spring Visit

★★★★★★★★★★4.4 · 195 reviews · 3 hours · from $35

Take a boat from Fira’s Old Port to Nea Kameni for a 90-minute crater hike, then swim for 30 minutes near Palea Kameni’s warm volcanic waters. The English-speaking guide provides instructions, but you need to manage the cable-car cost, volcano entry fee, towel, and a long swim to reach the springs.

“The boat ride was great! The hot springs were not actually hot—not the tours fault but that was disappointing.”

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10.Santorini Volcanic Islands Cruise: Volcano,Hot Springs,Thirassia and Oia Sunset

★★★★★★★★★★4.0 · 139 reviews · 11 hours (approx.) · from $68

Spend about 11 hours sailing from Santorini to Nea Kameni, Palea Kameni, and Thirassia, then watch sunset in Oia. A local guide and boat commentary cover the volcanic islands, while bus transfers link the port and villages. Bring sturdy shoes, swimwear, towels, sunscreen, and cash.

“The trip was very well organized and planned. The ship was authentic and weather was perfect. The hike to the top of the volcano was not easy but views well worth it. Swimming in the springs was incredible. The visit to the small village was also lovely. The price of the trip was definitely well worth it.”

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11.Luxury Northern Lights Yacht Cruise with Hot Tub from Tromsø

★★★★★★★★★★5.0 · 139 reviews · 4 hours (approx.) · from $344

Cruise Tromsø’s waters aboard the 12-person yacht Stella Oceana with Captain Kenneth and Sachi. Search for the aurora, warm up with reindeer soup, and enjoy a scheduled hot-tub session, with cozy indoor space when Arctic weather turns rough.

“This was hands down the best experience of our Nordic. From start to finish, the Northern Lights yacht tour felt truly special. We were incredibly lucky, the Northern Lights were visible for most of the nearly four-hour journey, and we even witnessed the dancing lights, which was absolutely magical. Being out on the water, surrounded by silence, sky, and sea, made the experience deeply immersive and genuinely rejuvenating. The hosts were exceptional, warm, kind, and deeply passionate about what they do. The captain’s excitement when the Northern Lights appeared was contagious; he was genuinely thrilled for us, celebrating the moment alongside us, which made the experience feel even more joyf...”

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12.Luxury Northern Lights Cruise with Hot Tub & Dinner

★★★★★★★★★★4.8 · 129 reviews · 4 hours · from $309

Join Captain Kenneth and Sachi aboard Stella Oceana, a 32-meter yacht limited to 12 people. Over four hours, cruise the Arctic fjords, warm up in the saloon, eat reindeer stew, and spend 30 to 45 minutes in the hot tub while watching for the aurora.

“Captain Kenneth and his First Mate (his lovely wife) put on a 1st Class Experience on their luxury yacht. This was hands down our favorite experience in Tromsø. Being out on the water, seeing the northern lights dance from a hot tub on board, it was simply amazing. We also liked that it was more intimate with not too many people. Cozy cabin below to keep warm. Yummy dinner of reindeer stew!”

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13.Budapest Széchenyi Spa with Danube Cruise and Optional Dinner

★★★★★★★★★★4.0 · 122 reviews · 2 hours (approx.) · from $155

Spend the day at Széchenyi Thermal Baths with locker or cabin access, then make your own way to Akadémia dock for a 90-minute Danube cruise. Expect welcome drinks, live Hungarian music, city views, and an optional buffet dinner. Cruise departures are at 19:00, with a 22:00 option from May through October.

“The spa experience was very nice! It was not as crowded as we expected. We were impressed with the privacy and security of the cabin changing rooms. The dinner was very good. The lights were beautiful, but we were disappointed that the boat did not pass the Parliament building while it was lit up as that is the most beautiful of the buildings. The music was wonderful!”

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14.Volcano and Hot springs Boat Trip with Bus Transfer

★★★★★★★★★★4.0 · 94 reviews · 3 hours (approx.) · from $54

Take a morning boat from Fira Old Port to Santorini’s active volcano, walk toward smoking craters, then swim about 30 meters to warm waters at Palaia Kameni. A local guide, round-trip transfer, swimming noodles, and onboard restroom are included, but the €5 volcano ticket and food are extra.

“Great boat trip! We wanting something that wasn't all day and this 3 hour trip was perfect for us. Great fun getting out on sea”

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15.Lichadonisia Islets Day Tour with Boat & Thermal Spa Pool

★★★★★★★★★★5.0 · 22 reviews · 14 hours (approx.) · from $118

Travel by air-conditioned coach from Athens to Kamena Vourla, then take a boat to the Lichadonisia islets for several hours of swimming and beach time. Guide Giorgio helps keep the day organized, while the optional Galini Mitsis thermal pool offers a warm finish.

“Very Nice expérience. Plenty of time on the beach of the Island. Take your swim show to explore and your food. The little café, does not provide food enough, bad quality and expensive. And you will wait long time to get your order. The sea is beautiful. And the view also. You are by yourself all the day and for the dinner. I recommand to book the spa, it is nice after a beach day. Maybe too expensive because you pay only to get the bus, the boat and the spa entry”

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