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

Santorini’s volcanic heart is only a short boat ride from Fira, but the setting feels far removed from the island’s whitewashed lanes. You’ll hike across black volcanic ground at Nea Kameni, then board the boat again for a swim near Palea Kameni’s warm-water bay.

I like the clear mix of walking and boating, and I like that the volcano visit gets a full 90 minutes rather than a rushed photo stop. The main catch is cost: the advertised $35 does not include the €5 volcano entrance fee or the cable car, which costs €10 each way if you do not walk the port steps.

Key points to know before you book

• Nea Kameni takes 90 minutes: You have time to follow the trail toward the volcanic craters and stop for views.
• The hot springs are not always hot: The water is usually warmer than the open sea, but the temperature changes with the season.
• You must reach Fira’s Old Port: Take the €10 cable car each way or walk down 587 steps.
• The swim needs strong swimming skills: The boat does not simply pull up beside a beach, so reaching the warm-water area requires a long swim.
• The volcano fee is extra: Budget €5 per person in addition to the tour price.
• Two departure times help: You can choose 11:00 in the morning or 14:15 in the afternoon.

Santorini is famous for its cliffs, sunsets, and bright villages, but the island’s most interesting story begins below the surface. The caldera was shaped by major volcanic eruptions, and this three-hour trip takes you directly to two small volcanic islands inside the bay.

For $35 per person, you get the boat ride, a 90-minute stop at Nea Kameni, and about 30 minutes near the thermal waters of Palea Kameni. That looks like a simple bargain, and it can be one, but you should add the extra costs before deciding.

The tour begins at Santorini’s Old Port, also called Gialos, below Fira. It is a scenic place to start, with steep cliffs rising behind the harbor and the caldera opening out in front of you. The short trip is a good fit if you want a close look at Santorini’s volcanic setting without spending a full day at sea.

Getting down to Fira’s Old Port

The first practical issue is getting to the meeting point. The Old Port is not in the center of Fira. It sits at the bottom of the cliffs, and the tour office is near the port, directly at the Santo Star travel office.

Most people use the cable car. The ride takes about three minutes and costs €10 per person each way, which means €20 for a round trip. That charge is not part of the tour price. You can also walk down the 587 steps, but the route is steep and takes effort. The return climb can be particularly demanding.

Give yourself time to reach the harbor. You need to collect your ticket and receive final instructions before boarding, and the port can feel confusing if you arrive at the last minute. The cable car is the straightforward choice, but it changes the real price of the outing.

At the stated $35 tour price, adding the €5 volcano fee and €20 cable car fare brings the basic cost to about $35 plus €25, depending on the exchange rate. If the cable car is your only practical option, this is not quite a $35 experience.

The short boat ride across the caldera

The boat ride to the volcano takes about 15 minutes. That is enough time to get a good look back at Santorini’s cliffs and understand the shape of the caldera from the water.

The trip uses a simple, useful format. You are not spending most of the morning or afternoon on a boat. Instead, the boat serves as transport between two volcanic stops, with the scenery providing a strong bonus.

An English-speaking guide welcomes you at the port and explains the arrangements before departure. Guide names are not provided, so you should not expect a specific guide by name when booking. The key service is keeping the group on schedule between the volcano walk, the swim, and the return journey.

Nea Kameni and its volcanic craters

Nea Kameni is the main stop and the most substantial part of the trip. The boat reaches the volcano bay after roughly 15 minutes, then remains there for about 90 minutes.

You can follow the trail toward the top of the island, where you’ll see the craters at close range. This is not a green mountain walk. Expect exposed volcanic ground, dark rock, and a dry, rugged setting shaped by eruptions.

The hike gives you something that a boat-only cruise cannot: a sense of the ground itself. You can see the rough volcanic surface underfoot and look out over the water from the higher parts of the island. The views are a major reason to choose this trip.

The trail is short enough to fit the schedule, but you should still wear proper shoes. Sandals can be uncomfortable on uneven volcanic ground, and the open setting offers little relief from sun or wind. Bring water, a hat, and sunscreen, since the supplied information does not mention shade or refreshments.

The €5 entrance charge is separate from the tour. This is easy to miss when comparing prices, so put it in your budget from the start. The fee is small, but it is an avoidable surprise if you arrive with only the advertised tour cost in mind.

The volcano itself may not satisfy anyone expecting a dramatic eruption or a huge crater. This is a walking and scenery stop, not a spectacle show. Its value comes from being able to stand on a volcanic island, see the crater areas, and connect Santorini’s famous caldera views with the force that formed them.

Palea Kameni and the warm-water swim

After Nea Kameni, the boat continues to Palea Kameni, home to the small bay of Agios Nikolaos and the hot springs. The boat stays for about 30 minutes.

The water is generally warmer than the surrounding sea, but it is not guaranteed to feel hot. Temperature changes with the season, and the water may seem only mildly warm at some times of year. If you are expecting a proper hot bath, adjust your expectations.

The mud baths are part of the appeal, although the main activity is a swim in the bay. Bring a towel because none is supplied. A dark swimsuit may be sensible if you do not want to worry about mineral-colored water or mud.

The important safety point is easy to overlook: reaching the warm-water area requires a long swim from the boat. You should take part only if you are a strong, confident swimmer. This is not the right excursion for anyone who wants to step directly from the boat into shallow thermal water.

The 30-minute stop is also fairly short. You have time to swim and enjoy the setting, but not to linger. Some people may decide the water is not warm enough or the swim is too demanding, especially outside the hotter months. That does not make the stop useless, but it does mean the volcano hike is the more dependable part of the experience.

What the schedule feels like

The tour runs daily with departures at 11:00 and 14:15. The morning departure gives you the rest of the afternoon in Fira, while the later trip may fit better around a slow start or other morning plans.

The stated duration is three hours. The main stops account for about two hours, with the remaining time used for the boat rides and the port departure and return. That makes this a compact excursion rather than a full-day outing.

The pace is active but manageable for someone comfortable with a short hike and a boat transfer. The strongest physical demands are the port steps, the uneven volcano trail, and the long swim to the hot-water area.

There is no stated group size, so I would not book this expecting a private boat or a quiet, custom schedule. You will be following a set departure and return time. That structure works well if you want a simple excursion with little planning, but less well if you prefer to linger at each stop.

Is the price good value?

The $35 base price is attractive for a three-hour boat trip with two stops. You receive transportation across the caldera, a 90-minute volcano visit, and a thermal-water stop. Compared with arranging separate boat transport, it is a convenient package.

The extra charges matter. Add €5 for the volcano entrance. Add €20 for the cable car if you use it in both directions. In practical terms, the outing can cost about $35 plus €25 before food, drinks, or other personal expenses.

You can reduce the added cost by walking to the port, but the 587 steps are steep. Walking down may be reasonable for some fit visitors, while walking back up is a different challenge. Conditions can also affect whether the stairs are open, so do not assume the walking option will always work exactly as planned.

I would judge the value by what you want from Santorini. If you want a quick look at the volcanic islands and do not need luxury, the price can work. If you are mainly chasing a hot bath, the experience is less certain because the water may be only warm and the swim is demanding.

Who should book this excursion?

I would recommend it for you if you want a short, active introduction to Santorini’s volcanic side. It suits people who enjoy a simple hike, dramatic caldera views, and a boat ride without giving up an entire day.

It is also a good option if you are staying in or near Fira and want an outing that begins and ends at the same port. The two daily departures make it easier to fit around other plans.

Think twice if you dislike steep steps, uneven ground, or swimming away from a boat. The excursion is not designed around easy access to the thermal water. You should also reconsider it if your main goal is a reliably hot soak.

Families and mixed-age groups need to look closely at the swimming requirement. The volcano walk may be manageable for many people, but each person choosing to swim must be a strong swimmer. Those who skip the water stop will have a shorter experience at Palea Kameni.

Practical packing advice

Bring a towel, since towels are not included. Wear shoes that can handle a rough volcanic trail, and pack water, sunscreen, and a hat for the exposed walk.

A swimsuit is useful if you plan to enter the thermal bay. You may also want a change of clothes, although the supplied details do not specify changing facilities.

Pets are not allowed. The tour is conducted in English, and the guide provides instructions before boarding.

For the best value, set aside money for the €5 volcano entrance and decide in advance whether you will use the cable car. That small bit of planning prevents the advertised price from catching you off guard.

Should you book the Nea Kameni and Palea Kameni trip?

Book it if you want a compact, straightforward boat outing with a real volcano walk and the option of a thermal swim. The 90 minutes at Nea Kameni is the strongest feature, giving you enough time to walk toward the craters rather than simply photograph the island from the deck.

Skip it if you want a guaranteed hot spring experience, easy swimming, or an all-inclusive price. The water may be only mildly warm, the swim is long, and the actual cost rises once you add the volcano fee and cable car.

For most fit visitors who plan carefully, this is a worthwhile half-day-style outing packed into three hours. Just treat the volcano hike as the main event and the hot springs as an optional bonus.

FAQ

Where does the boat trip start?

The tour starts at Santorini Old Harbor, also called Gialos, below Fira. Go to the Santo Star travel office at the port to collect your ticket and receive instructions.

How do I reach the Old Port from Fira?

You can take the cable car, which takes about three minutes and costs €10 per person each way. You can also walk down 587 steps.

What departure times are available?

The tour departs daily at 11:00 and 14:15.

How long is the tour?

The full experience lasts about three hours.

Is the volcano entrance fee included?

No. The Nea Kameni volcano entrance fee is €5 per person.

Do I need to bring a towel?

Yes. Towels are not included, so bring your own if you plan to swim at the hot springs.

Can anyone swim at the hot springs?

You should swim only if you are a strong and skilled swimmer. You must swim a long distance from the boat to reach the shore and warm-water area.