Hot springs in Santorini, with a volcano hike included.

This half-day cruise is one of the best ways to see the Santorini Caldera from the water, then put your boots to work on an optional crater hike. I love the views from a wooden sailboat as you circle rugged volcanic islands, and I love the hot springs swim stop where you can cool off or just float and watch the black-sand shoreline. One thing to plan for: the volcano hike is self-guided and the terrain can be rocky and uneven, so you need real walking shoes and a safety-minded attitude.

You start in Fira Old Harbor, then the route hits the two big volcano moments in a tight schedule. Expect audio commentary plus on-the-ground direction once you reach Nea Kameni, and a timed hot springs stop that keeps the whole trip moving. If you are a cautious swimmer, you can stay on the boat during the swim portion, but you still might get wet on the ride depending on wind and waves.

Key things I’d tell a friend before you go

• Nea Kameni is optional and self-guided: you choose whether to hike toward the crater after paying the entry fee in cash.
• Hot springs time is limited: port rules cap the swim stop at 30 minutes, so come ready to get in.
• Pool noodles are provided: they help for the short swim from the boat to shore (some sections can feel deeper than you expect).
• Bring sunscreen and a towel: sulfur-rich water can discolor light fabrics.
• The boat is usually comfortable, but weather matters: you might get splashed, and summer can feel crowded.
• A Thirasia stop is available if you pick the option: it adds breathing room after the volcano and swim.

Sailing From Fira Old Port: The Trip Starts With Caldera Views

The tour departs from Fira Old Port in the town of Fira. You meet at 10:30 am at the Santo Star office, then the boat usually leaves at 11:00 am. The starting point matters because Santorini’s cliff towns are not exactly flat, so give yourself time to get down to the port area without rushing.

Once you’re onboard, the vibe is practical and scenic. This is a wooden sailboat, and the ride focuses on letting you see Santorini’s famous coastline and the volcanic islands that sit inside the caldera. You get audio commentary during the cruise, which is helpful on a route like this because volcano history and the layout of the islands make more sense when you understand what you are looking at.

I also like that the boat is meant to be comfortable for a short outing. Even in peak summer, there is generally a seat for every passenger. One review even mentioned the boat had charging outlets, which is a small detail, but it matters when you want photos without your phone dying.

Nea Kameni Volcano: The Crater Hike Option You Should Plan For

Your first stop is Nea Kameni, the site of an active volcano. This part is the main adventure button you can press, because you can choose to hike up to the crater. The important catch is that the hike is self-guided without a guide. That is not a reason to skip it, but it changes how you should prepare.

There is also a volcano entry fee of 5 EUR, paid separately in cash. Plan on having the cash handy so you are not scrambling at the last second. Once you enter, you follow the route on your own. Some people reported that the walk up can be around 30 minutes each way, while others described closer to 1.5 hours on the hike depending on pace and how often you pause for steam and views.

What you’re looking for is the lunar-like volcanic terrain. You can spot steam coming from parts of the area, which makes the hike feel more real than just reading about a volcano. At the top, the views are the payoff: the caldera opens up and you see why Santorini’s coastline is such a standout.

Footwear is not optional. Reviews repeatedly stress that the path can be rocky. If you show up in the wrong shoes, your hike experience can turn into an endurance test. Come with comfortable shoes that grip well on uneven ground, and expect that you might be walking on surfaces that are not smooth.

Palea Kameni Hot Springs: When You Actually Want to Get in

After Nea Kameni, the cruise continues to Palea Kameni, where the hot springs are. This is the relax section, but it is not a long one. Due to port restrictions, the stop at the hot springs is capped at 30 minutes. That short time window changes everything. If you want the full effect, you should be ready to get in quickly, not spend the first ten minutes changing plans.

Pool noodles are provided, and they are genuinely useful. Several comments describe needing the noodles because you swim a short stretch from the boat to shore. One person noted about 10 meters depth before you reach shallower water, which explains why the noodles help even if you can swim.

Also, the water temperature can surprise you depending on the month. One review said April felt cold, even though it’s called hot springs, and I think that is a fair warning. If you’re going in during cooler shoulder seasons, treat it like a sea dip with warmth, not a spa bath.

If you are not a confident swimmer, you can stay on the boat for the hot springs portion. Life jackets are on board, but they are described as provided only in emergencies. So do not rely on equipment for comfort. Instead, be honest with yourself about your comfort level in open water, then decide if you want to swim or watch from the boat.

One extra detail worth thinking about: the sulfur-rich water can discolor light fabrics. That means swimwear and towels are safer than that cream-colored shirt you love. Bring a towel anyway, and protect your skin with sunscreen.

Finally, the entry and exit experience can vary by conditions. Some people were fine with the way they got into the water, and one person would have preferred using a ladder first. The practical takeaway is simple: be ready for a quick moment of off-the-boat hopping or stepping, then you will likely find your rhythm once you are in.

Optional Thirasia Time: A Different Pace Inside the Caldera

Depending on your selected option, you may get free time to explore Thirasia. This is a nice add-on because it breaks up the volcano and swim intensity with a calmer pocket of time. Thirasia is part of the caldera story too, and the whole point of giving you free time is so you can wander at your own speed instead of being pushed through another scripted stop.

What you do with that time is up to you, but the value is that you’re not locked into constant movement. If you want photos without the pressure of a timed group, this portion helps. If you want a relaxed break after the hike, this is the moment to sit, drink something, and let your legs recover.

Price and Value: What You Pay vs What You’ll Add

The headline price is $35 per person for the cruise, and it includes a lot of the hard parts of the experience. You get the boat tour, audio commentary, an optional volcano hike, and the hot springs swim stop. You also get foam pool noodles, which is one of those costs you would otherwise pay for yourself in time and hassle.

But you should budget for a few extras because they come up right where you are already excited and tired. The big one is the volcano entry fee of 5 EUR, paid separately in cash. The other optional cost is the cable car ticket, listed as 12 EUR each way if you choose to use it. Cable car timing and operation can be a variable, and at least one review described a day when it was not functional, meaning a longer walk of steps.

Also, food and drinks are not included. There is a bar on board where you can buy drinks, and one review said snacks and drinks were useful for keeping kids happy. If you want to eat on the boat, bring a plan, or at least bring water and figure out your timing.

Now the value math. For a tour that hits a volcano crater hike option and includes a real hot springs swim stop, $35 is strong as long as you are fine with paying the small fixed additions and bringing the right gear. If you hate hikes or you want a fully guided experience on the volcano, you might find the setup less ideal. If you are okay with a self-guided hike and you want caldera views without spending a fortune, it is a good deal.

Comfort, Crowds, and Practicalities That Change the Day

This is a short outing, so small details can shape your day more than you’d expect.

The boat can be crowded in summer, but there is typically seating for everyone. That said, you still want to arrive ready to move. Check in at the Santo Star office, get onboard smoothly, and keep your plan flexible once you reach each stop. One review mentioned that organization can feel a bit chaotic when groups split, especially if you are trying to take photos. Nothing is unsafe, but it does mean you should pay attention to return times and meeting cues.

Weather matters. The boat is a sailboat, so you might be splashed. Wind can also make it harder to hear commentary in some conditions, so if you really want the spoken info, sit where you can hear best and keep your head up during windy stretches.

On the water side, the hot springs stop is short. Even the best swimmer has to manage time. That is why I treat this like a quick swim mission, not a leisurely beach day. Go in, float, enjoy the feeling, then get back before the boat leaves.

Accessibility is limited. This tour is not suitable for wheelchair users. The tour involves a moderate amount of walking, and the volcano hike, if you take it, includes uneven surfaces. If your mobility is limited, skip the hike option and stay on the boat during the hot springs portion.

What to Bring: The Small List That Saves the Big Moment

Bring comfortable shoes with grip. This is the single most repeated advice for the volcano portion. Wear sunglasses and a sun hat, since you will be exposed to sun on the boat and during the hike.

Also pack towel, sunscreen, and beachwear. You may get wet on the boat and you’ll likely be glad you have a towel after the hot springs. Since sulfur water can discolor light fabrics, dark or older clothes can be smarter.

And bring cash for the volcano entry fee. Reviews show that people get tripped up when they do not have cash ready.

Finally, bring a mindset for “short and active.” This tour is not about sitting all day. Even if you skip the hike, you’ll still walk around the port areas and handle the quick swim portion.

Who Should Book This Cruise, and Who Should Skip

If you want a half-day adventure that mixes dramatic views, a volcano experience, and a hot springs dip, this tour fits well. It’s especially good for people who like doing one signature hike without committing to a longer trek day.

It also works well for swimmers who are comfortable with open water and short swims. You get noodles and you have a short window to enjoy the springs.

If you are traveling with kids, the included pool noodles and the option to stay on the boat can make the experience manageable. Just note that the swim portion can require active participation to fully enjoy it.

Skip or rethink it if you have trouble with uneven walking surfaces, since the volcano hike is optional but still part of the experience you might want. Also skip if you need a fully guided volcano program, because this crater hike is self-guided and you are responsible for your own safety.

Should You Book This Santorini Volcano and Hot Springs Tour?

I think this is a strong booking if your goal is to tick the caldera boxes efficiently. You get that iconic volcano setting, you get the hot springs experience, and you do it with a small amount of time compared to bigger multi-hour excursions. The $35 base price is solid, and the included pool noodles and boat experience make it feel complete.

Book it if you can handle a short hike on rocky ground and you are willing to follow instructions and timing closely. Bring cash, bring proper shoes, and accept that the hot springs stop is brief by law. If you do that, you’ll leave with the kind of photos and stories that come from actually standing on volcanic ground and floating in sulfur water.

FAQ

Where do I meet and what time does the tour depart?

You meet at Fira Old Port at the Santo Star office. The meeting time is 10:30 am, and the departure time is 11:00 am.

How long is the cruise?

The duration is listed as 3 to 6 hours, depending on the starting time and how the day runs.

Is the volcano hike included, and is it guided?

The volcano hike is optional. If you hike, it is self-guided, meaning there is no guide leading you on that walk.

How much is the volcano entry fee?

The volcano entry fee is 5 EUR, and it is paid separately in cash.

How long is the hot springs stop?

The stop at the hot springs is limited to 30 minutes due to port authority restrictions.

Can I swim if I am not a confident swimmer?

If you are not a confident swimmer, you can stay on the boat during the hot springs swim stop. Life jackets are on board but are described as provided only in case of emergency.

What does the tour include for the water portion?

The tour includes a hot springs swim stop and foam pool noodles. Drinks are not included, but you can purchase them on board from the bar.

What should I bring?

Bring comfortable shoes, sunglasses, a sun hat, a towel, sunscreen, and beachwear. You should also bring cash.

Is this tour wheelchair accessible or can I bring pets?

This tour is not suitable for wheelchair users. Pets are not allowed.

Are there extra costs besides the tour price?

Yes. You should plan for the 5 EUR volcano entry fee in cash, and the optional cable car ticket is 12 EUR each way. Food and drinks are not included and are available to purchase onboard.