Reviewed · CRUISES & BOAT TOURS
From Old Port:Volcanic Islands Boat Trip & Hot Spring Visit
Volcanic islands turn a short trip into a story. I like that this one mixes real volcanic terrain with a relaxed thermal-water swim on Palea Kameni. You also get enough time to make the boat stops feel worthwhile instead of rushed. The catch is the price can climb once you add the volcano entrance fee and, for many people, the cable car to reach the Old Port.
If you’re hoping for a single, simple ticket price, plan a little differently. One drawback to keep in mind is that the hot springs experience depends on the day and season, and the swim to the shore can be a challenge if you are not a strong swimmer.
In This Review
- Key things to know before you go
- Old Port of Fira to the Volcano Bay: the timing that makes it work
- The Nea Kameni crater hike: what you’ll see, and what to expect on foot
- Palea Kameni hot springs and mud-bath style waters: the swim reality check
- Where Thirassia village fits in: why the sailing adds more than the hot springs
- Price and what to budget: the tour fare is only the start
- Getting to the meeting point at Gialos: avoid the last-minute scramble
- Swim safety and comfort: who this trip suits best
- What the 3-hour flow feels like once you’re on board
- The big deciding question: volcano views, or hot springs warmth
- Should you book this Santorini volcanic islands boat trip?
- FAQ
- What time does the tour depart from the Old Port of Fira?
- How long does the trip last?
- What is included in the price?
- What extra costs should I expect?
- Do I need to swim at the hot springs?
- Where do I meet and how do I find the tour office?
Key things to know before you go

- Nea Kameni hike, about 1.5 hours: Time on foot to get close to the volcanic craters.
- Palea Kameni thermal swim, about 30 minutes: A short window to enjoy hot springs and mud-bath style waters.
- Two daily departures from Old Port of Fira: 11:00 and 14:15, both designed for a tight 3-hour outing.
- Short boat transfer, about 15 minutes: You are on the water briefly before the volcano time begins.
- Extras to budget: Volcano entrance fee (€5) and optional cable car (€10 per trip) are not included.
- Swim rules matter: You may need to swim a longer distance to reach shore if you want to get in.
Old Port of Fira to the Volcano Bay: the timing that makes it work

This tour runs as a compact half-journey of sorts. You start from Santorini Old Harbor (Gialos) and sail out to the volcano area quickly. Expect the day to feel focused: a hike on Nea Kameni, then a swim at Palea Kameni, then back to the Old Port.
The departure schedule is simple: it runs daily at 11:00 and 14:15, and the total time on the outing is listed at 3 hours. The math mostly holds up once you break it down. The boat ride is short, around 15 minutes to reach the volcano bay, then you get about 1 hour 30 minutes on Nea Kameni, followed by about 30 minutes at the hot springs area, and then you sail back.
That structure is what I like for first-time volcano visitors. You get to do the headline parts without losing a full day to transport. It is also why you should check your morning plans carefully. A late lunch the same day might work, but you will be glad you didn’t schedule something tight right before the tour departure.
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The Nea Kameni crater hike: what you’ll see, and what to expect on foot

Nea Kameni is where the volcanic story gets physical. After a short boat ride, you arrive at the volcano bay and stay for roughly 1 hour 30 minutes. During this time, you have the option to follow a trail leading upward to see the crater area up close.
What makes this stop worth your time is not comfort. It is the way the terrain looks and feels. You are walking on an active volcanic landscape shaped by eruptions over long periods, and the craters are the obvious highlight. Even if you are not a geology nerd, the views help you understand why people treat this place as more than a postcard.
Practical considerations matter here:
- Wear shoes that handle uneven ground.
- Bring a towel (you’ll use it later), and water if you like to stay comfortable during hikes.
- Think of the hike as a “walk to viewpoint” more than a long trek.
Also, the tour is designed for a broad range of visitors. That is why the key time block is long enough to let you decide your pace. If you want the crater views up close, plan time to climb. If you prefer a calmer route, you can still enjoy the scenery without pushing it.
Palea Kameni hot springs and mud-bath style waters: the swim reality check

Next comes Palea Kameni, the other major island stop. The boat stays at the hot springs area (listed as the small bay of Agios Nikolaos) for about 30 minutes. This is the part most people are waiting for: thermal-water swimming.
Here is the honest part. The water temperature varies by season, and it is generally warmer than surrounding sea currents. In cooler months, it can feel less dramatic than you expected. If you are traveling in fall, this is worth factoring into your expectations so you do not feel disappointed if the water feels merely pleasantly warm rather than super hot.
There is also a swim-distance note that you should not ignore. If you decide to swim at the hot springs, you need to be a strong swimmer because you may have to swim a longer distance to reach the shore. The tour likely offers the chance to swim, but it does not treat this like a stroll in knee-deep water.
My advice:
- If you are a confident swimmer, this stop can be really satisfying.
- If you are not, consider what “enjoy” means for you. Being near the hot-water spot and watching the volcanic setting can still be part of the experience, even if you skip the longer swim.
Even with that caution, this is usually the emotional high point of the trip. The idea of volcanic heat and seawater in the same scene is exactly the kind of “only here” feeling you come to Santorini for.
Where Thirassia village fits in: why the sailing adds more than the hot springs

This tour concept is built around more than just two volcano stops. You are also given time that includes scenic views and an opportunity linked to Thirassia village.
Even if you do not spend a full chunk of time wandering like you would on a standalone island day, this piece matters. Santorini’s caldera cliffs and the contrast between water and rock are what make the islands so visually striking. The sailing portion gives you angles you cannot get from Fira’s viewpoints alone.
So treat the extra time on the way as a bonus for your camera and your sense of place. It helps you connect what you see at sea with what you later imagine on land.
Price and what to budget: the tour fare is only the start

The listed price is $35 per person with a 3-hour duration. That sounds straightforward, and the core inclusions are meaningful: you get a visit to the volcano area (about 1 hour 30 minutes) and you get time for thermal water swimming (about 30 minutes).
But the extras are very real:
- Volcano entrance fee: €5 (not included)
- Cable car ride: €10 per person each way (not included)
- Towels: not included
This is where value comes down to how you handle getting to the Old Port and back. The Old Port is right below Fira, and you can reach it either by a cable car or by walking down steps. The walking option is steep and long, listed as 587 steps.
If you use the cable car both directions, that can add up fast. The cable car is described as a short 3-minute ride, but the cost is per trip. So, depending on your choices, the day can turn from a budget-friendly outing into something closer to a midrange excursion.
My suggestion is simple: before you book, decide how you will handle the stairs. Then budget for the €5 volcano entrance plus whatever your cable car plan is, and bring your own towel to avoid surprise costs. That turns the day into a predictable, fair-feeling purchase.
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Getting to the meeting point at Gialos: avoid the last-minute scramble

Your meeting point is the Old Port of Fira (Gialos). Once you arrive at the port by cable car or on foot, head toward the Santo Star travel office, located directly at the port. That is where you collect your ticket and get final instructions.
This matters because tours like this often have a tight boarding window. If you arrive late or confused, you lose the most valuable thing on a 3-hour tour, which is time on the islands.
The good news is that the starting location is visually easy to orient around. The stairs and cable car funnel you into the same harbor area, and the tour office is at the port itself.
Swim safety and comfort: who this trip suits best

This is a trip for people who like physical sights and short “get your bearings” adventures. You should feel comfortable with:
- Walking during the Nea Kameni time block
- Being in open water on a boat ride
- Understanding the swim requirement for the hot springs area
If you are a strong swimmer, the hot springs portion can feel like the best part of your Santorini day. If you are not, you should still enjoy the volcanic setting, but skip the longer swim unless you know you can handle it.
It is also a good fit for couples and small groups who want a concentrated volcanic visit rather than an all-day island hopping plan. Families can work depending on comfort levels, but the swim-distance note means it is not automatically a “kids do it” activity.
And quick heads-up: pets are not allowed on this excursion.
What the 3-hour flow feels like once you’re on board
Here is how it plays out in real time, in a way you can mentally picture.
1) You start at the Old Port and board for the short trip out.
2) You reach the volcano bay and settle into the 1 hour 30 minutes on Nea Kameni, including the option to hike toward the craters.
3) You then go to Palea Kameni and spend about 30 minutes around the hot springs bay, with swimming available if you can do it safely.
4) You return to the Old Port of Fira.
This flow is what makes the tour efficient. You get a volcano hike plus a thermal swim without a whole-day logistics puzzle. The tradeoff is that each stop is timed. You cannot linger in the way you might on a longer private charter.
So if you love “take your time” travel, you might find the schedule compact. If you prefer a tight itinerary that still hits the key sights, this is a strong match.
The big deciding question: volcano views, or hot springs warmth

For me, the biggest factor in whether this tour feels like a win is what you came for most.
- If your top priority is seeing craters up close, Nea Kameni delivers the most direct payoff.
- If your top priority is the hot springs, you should set your expectations to match seasonal temperature changes and remember the swim-distance note.
The volcano itself can feel different depending on your expectations. If you want something like a polished, landscaped attraction, a volcanic island will never fully copy that. But if you want the raw, real feel of a living geological area, the hikes and viewpoints make sense.
One more practical thought. This tour spends time outdoors and involves active movement. Bring a towel and plan for modest comfort, not spa-level ease. That way, even if conditions are windy or cooler, you are still ready to enjoy the moments that matter.
Should you book this Santorini volcanic islands boat trip?
Book it if you want a short, structured volcano day that includes both crater time and a thermal-water swim. It is especially worth it if you already know you will hike Nea Kameni and you can handle the swim requirement safely.
Skip or reconsider if you:
- Want a truly all-in price with no add-ons, because the €5 entrance fee and possible cable car cost can change the math.
- Are hoping for guaranteed, very hot water every day, because water temperature shifts with the season.
- Are not comfortable with the longer swim to shore at the hot springs area.
If you do book, do it with one planning mindset: budget the extras, pack a towel, and choose your route down to Gialos based on what you can handle comfortably. With that in place, the trip is a smart way to see Santorini’s volcanic side without turning it into an all-day production.
FAQ
What time does the tour depart from the Old Port of Fira?
The tour departs daily at 11:00 and 14:15 from the Old Port of Fira (Gialos).
How long does the trip last?
The total duration is listed as 3 hours.
What is included in the price?
The tour includes the volcano visit (about 1 hour 30 minutes) and a swim at the thermal waters (about 30 minutes).
What extra costs should I expect?
The volcano entrance fee is €5 and the cable car is €10 per person each way. Towels are not included.
Do I need to swim at the hot springs?
Swimming at the hot springs is optional, but if you decide to swim you must be a strong swimmer because you may have to swim a longer distance to reach the shore.
Where do I meet and how do I find the tour office?
Meet at the Old Port of Fira (Gialos). Once you reach the port, go to the Santo Star travel office directly at the harbor to collect your ticket and receive instructions.
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