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

Volcano craters and hot springs in one go. This Santorini volcanic islands boat trip takes you from the Old Port to hike Nea Kameni and swim in Palea Kameni’s thermal waters. One thing to think about first: your ticket price can climb once you factor in the volcano entrance fee and how you get down and back up to the Old Port.

I like this tour because it turns Santorini’s geology into a hands-on morning or afternoon. You get a short, real island-and-water day instead of only viewing the caldera from the cliffs, with enough time to do the hike and still get your swim stop. The main drawback is that the hot springs swim depends on your comfort in open water, and in cooler months the water may not feel super hot.

Key Points at a Glance

• Nea Kameni crater hike option: follow the trail toward the top if you want the closer look at active craters
• Palea Kameni thermal swim: short time in the warm bay, with a swim requirement depending on conditions
• A clear 3-hour structure: about 15 minutes by boat each way, plus 1.5 hours on the volcano island
• Caldera viewpoints on the water: you’re on the bay, so photos feel more dramatic than from the road
• Budget for extra fees: the volcano entrance and cable car are not included, and towels are not provided
• English live guide: helpful context while you’re moving between stops

How the Trip Runs From Santorini Old Port (Gialos)

This is a tight 3-hour outing that starts at Santorini Old Port (Gialos), right below Fira. Your boat leaves daily with two departures, at 11:00 and 14:15, so you can pick the timing that matches your day on the island. From the old port, it’s a quick ride out to the volcano bay, then a longer stay where you can choose your pace.

The tour timing is built around two physical experiences. First you spend about 1 hour 30 minutes on the volcano island area, with the option to hike the Nea Kameni trail up toward the craters. Next you stop at Palea Kameni for roughly 30 minutes, focused on the hot springs swim time. Then it’s back to Fira Old Port to end your day without a long ride or multiple transfers.

Logistics matter here because the Old Port is below Fira. You can reach it by cable car (about a 3-minute ride, priced separately) or by walking down the steep steps. Either way, you’ll want to plan how you’ll return your energy, since the trip ends back down at the harbor and you still need a way up to where you’re staying.

Nea Kameni Craters: The Hike You’ll Remember

Nea Kameni is where this tour earns its reputation. You arrive at the volcano bay and have about 1.5 hours total on the island area, which is enough time to do a proper walk and still have room for photos and a breather. If you’re up for it, you can follow the trail that leads toward the top for a closer look at the active craters.

Here’s the reality check I like to give: you’re not touring a theme park volcano. You’re walking on a rocky volcanic island, and the “wow” is in the raw geometry. The craters feel dramatic because you’re higher and closer than most viewpoint stops around Santorini. The air and the ground texture add to it too, because you’re not just looking at rock from afar, you’re on it.

The short hike is also a good match for different stamina levels. You don’t have to go all the way if your legs are tired, but having the option is what makes this stop worth the time. It’s also one of the best photo windows, because the light across the caldera and the volcanic rock changes quickly while you’re moving.

One more consideration: you’ll want good footwear and you should keep an eye on footing. This is a hike on an island surface that doesn’t behave like a groomed trail. Bring your sensible hiking mindset and you’ll enjoy it a lot more.

Palea Kameni Hot Springs Swim: Warm Water and Tougher Conditions

After the crater island, you head to Palea Kameni, where the tour centers on the hot springs and the famous volcanic mud baths. Your time here is about 30 minutes, and you’re stopping in the small bay of Agios Nikolaos, where water temperature can vary by season. The important point is simple: it’s usually warmer than the surrounding sea, but it doesn’t always feel equally hot across the year.

I also think your expectations should be practical. You’re getting a swim stop, not a long spa session. Some people are thrilled by the feeling of warm water; others feel disappointed if the water isn’t as hot as they hoped, especially in months when the weather is cooler. Plan to treat this as an outdoors experience, not a guarantee of maximum heat.

The tour also notes a swim challenge for anyone who wants to go ashore at the shore point. If you decide to swim, you need to be a strong swimmer because you’ll have to swim a longer distance. That means your best approach is to decide early, before you’re in the water and committed by momentum. If you’re not a confident swimmer, you may want to think carefully about whether you’ll enjoy the hot-springs component.

When it’s going well, though, this is the most “Santorini” feeling moment of the whole trip. You’re in the Aegean with volcanic heat under you, and it feels like you’re stepping into the island’s engine.

The Boat Ride, Views, and Photo Timing

The boat portion is short but meaningful. It’s roughly 15 minutes from Fira’s Old Port area to the volcano bay, so you won’t waste time on transit. Once you’re out there, the scenery becomes a moving viewpoint. Instead of only looking at cliffs and rooftops from the road, you see the caldera walls from the water, and that perspective makes everything feel more dramatic.

There’s also a photo-stop element on the way out, which helps you get the “before you get muddy” shots. Then you’re back in motion again: crater hike, then the hot springs stop. The pace is quick enough to feel like an adventure, but not so rushed that you lose all control of your own time.

I’d suggest choosing your departure based on sun and comfort. The 11:00 trip can give you brighter daylight for the hike and craters, while the 14:15 option often feels more relaxed if you’re already worn down from a walking-heavy day. Either way, bring a plan for hydration, because you’re outside for the whole core portion of the day.

If you care about photos, bring a dry bag or something to keep your phone safe during the transition into the swim stop. Towels are not included, so you’ll likely be drying off with your own gear anyway, but keeping your electronics protected makes the day easier.

Price and Value: What You Really Pay

On paper, the tour price is about $35 per person for a 3-hour outing. In practice, you should expect the final cost to go higher once you add the extras that are not included. The volcano entrance fee is €5, and if you use the cable car to get down and back up from Fira, that’s €10 each way.

This is the part where I encourage you to do quick math before you book. If you start by cable car, you could be paying a noticeable add-on right away. If you walk the steps, you’ll save money but pay in sweat and stamina. Either choice can still be worth it, but you should pick the one that matches your body and your schedule.

Towels are not included either, so you’ll want to bring one. That small detail matters more than it sounds because you’ll want something for drying off after the thermal water swim.

Now, the value question. I think the tour is good value if you want the two-bucket combo: walking volcanic craters and then relaxing in warm (or at least warmer-than-sea) water. If you only care about one of those, you might prefer something simpler. But if you’re excited by the idea of standing near active volcanic features and then switching to a thermal swim, the price can feel fair for the time you get.

Who Should Book This and Who Might Skip It

This tour is best for people who like short, active days. You’ll be walking on volcanic terrain, you’ll be on a boat, and you’ll be in open water for the swim stop if you choose it. It’s also ideal if you want a guided experience with an English-speaking guide who can help you understand what you’re seeing as you move between the two islands.

You might reconsider if you are a weak swimmer or you’re not comfortable with the swim distance required to reach shore. The hot springs component is the selling point, but it comes with a safety reality. You’ll have to decide based on your own comfort level.

If you hate steep stairs, plan how you’ll handle the descent to the Old Port. The Old Port is reachable by cable car or by walking down 587 steps, and the walk is described as steep. The tour itself doesn’t change that challenge, because it ends where it starts, at the harbor below Fira.

Lastly, if you’re hoping for a long, fully heated spa experience, adjust expectations. This is a short swim stop with seasonal temperature variation. It can still be enjoyable, but it’s not a guarantee of constant, super-hot water.

Practical Tips So You Enjoy the Volcano and Swim

First, bring a towel. It’s one of those details that keeps your day comfortable instead of annoying. Also bring footwear that gives you grip for rocky ground. If you’re doing the crater trail up, you’ll be happy you planned for traction.

Second, set your pace before you reach Nea Kameni. You have 1 hour 30 minutes total, so if you start slow you can still finish the experience. If you push too hard at the beginning, you may cut your crater time and feel rushed.

Third, decide your swim plan before you’re committed. The hot springs swim includes a longer distance requirement for reaching the shore point, so your decision affects how calm the rest of the stop feels. If you’re unsure, it’s better to opt out than to force it.

Fourth, think about clothing. You’ll be wet for the hot springs swim, and you’ll want something you can change into afterward when you return to Fira Old Port. A small dry bag helps for keeping your phone and wallet safe on the boat.

Finally, watch the weather and water comfort. The tour stays close to the volcano area and open water, so if conditions are rough, the boat and swim stop will feel more intense. Picking your departure time can help you feel better physically, but nature sets the real conditions.

Should You Book This Santorini Volcano and Hot Springs Trip?

I’d book this if you want a short adventure day that combines volcanic craters and a thermal-water swim without needing complicated planning. It’s also a great choice if you want the “caldera from the sea” view, not just the cliffside version.

I’d pass or choose another option if you’re not a confident swimmer, or if you only want one of the two main experiences. Also, factor in the real costs up front, especially the volcano entrance fee and the cable car option if you don’t want to walk the steps.

If your priority is geology you can walk on, plus a warm-water break afterward, this is one of the more direct ways to experience the volcano side of Santorini in a half-day time window.

FAQ

Where does this tour start?

It starts at the Old Port of Fira (Gialos). When you arrive by cable car or on foot, go to the Santo Star travel office at the port to collect your ticket and get final instructions.

What time does the boat depart?

The tour runs daily with departures at 11:00 and 14:15.

How long is the tour?

The total duration is about 3 hours.

What is included in the price?

The included activities are the volcano visit on Nea Kameni for about 1 hour 30 minutes and a thermal water swim on Palea Kameni for about 30 minutes.

What extra costs should I expect?

The volcano entrance fee is €5, the cable car ride costs €10 per person each way (if you use it), and towels are not included.

Do I need to bring anything?

Bring a towel for the hot springs swim and getting comfortable afterward.

Is there an English-speaking guide?

Yes. The tour includes a live tour guide in English.