REVIEW · PRIVATE SNORKELING CHARTERS
Explore Santorini and its volcanic wonders with Alex Private Boat
Santorini’s best views are not always from the cliff towns. This private boat trip takes you below the caldera, where you can swim near volcanic islands, inspect dark lava rock, and see the island from the Aegean Sea. The boat is reserved for your group of up to six, so you are not tied to the pace of a large excursion.
I like the small-group privacy and the chance to stop for swimming and snorkeling without a crowded deck around you. I also like the food: the crew prepares a traditional Greek spread with wine and refreshments, turning a short cruise into a relaxed meal on the water. The main drawback is that the sulfur-rich hot springs can stain swimwear, so bring an old or dark swimsuit.
Key points to know before booking

- Private boat for up to six: Your group has the boat to itself, which gives you more room and a calmer pace than a standard group cruise.
- Three hours on the Aegean: The trip is long enough for volcanic stops, swimming, snorkeling, and food without taking up a full day.
- Hot springs near Nea Kameni: The warm sulfur waters are the main swimming attraction, but they can discolor fabric.
- Greek food prepared aboard: Expect traditional food, snacks, wine, and refreshments after your time in the water.
- Several crew names appear in the service: Captains and hosts mentioned for this experience include Alex, Panos, George, and Dimitri.
- Weather matters: Poor conditions can lead to a new date or a full refund.
Why this private Santorini cruise is worth your time

A boat trip gives you a side of Santorini that you cannot see from Fira’s cliff path. From the water, the island’s volcanic form makes more sense. You see the dark rock around the caldera, the steep coast, and the smaller volcanic islands that helped shape Santorini’s past.
The private setup is the real advantage. Six people can share the boat without strangers joining the group. That makes a difference if you want quiet time, are traveling with children, or simply dislike being rushed from one swim stop to the next.
You still get some structure. The trip lasts about three hours and begins and ends at Santorini Old Harbor, but the captain can give your group a more personal outing than a large boat normally allows. The crew has taken families, couples, and cruise passengers, and the tone can be social without becoming a loud party boat.
Music is provided on board, but the trip is not only about entertainment. The captains also explain the volcanic area and point out details you might otherwise miss. Dimitri, for example, has shown guests old fishing houses built into the rocks of another island. That kind of small observation can add a lot to a short cruise.
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Leaving from Santorini Old Harbor
The meeting point is Santorini Old Harbor in Fira, at Fira 847 00, Greece. The activity returns to the same place, which keeps the plan simple and avoids arranging a separate return transfer.
The harbor sits below Fira, so allow time to reach the meeting point. The supplied information confirms that public transportation is nearby, but it does not specify a pickup service. You should plan to arrive at the stated harbor meeting point rather than expect hotel pickup.
The boat trip itself lasts about three hours. That makes it easy to fit around other Santorini plans, especially if you want time before or after for Fira, Oia, or a meal on land. If you are arriving by cruise ship, pay close attention to the start time and return schedule. The boat comes back to the meeting point, but you remain responsible for allowing enough time to return to your ship.
Nea Kameni and the warm sulfur waters

The first major stop is Nea Kameni, the volcanic island in the caldera. The focus here is swimming in warm water near the volcanic area, with a chance to see lava rock up close.
This is not a beach stop with a broad sandy shore. The appeal is the unusual setting. You are swimming in the caldera near volcanic rock, with Santorini rising around you. The water can be warm and sulfurous, which gives the stop its character and explains the swimsuit warning.
Bring an old swimsuit, preferably black or another dark color. Sulfur in the water can stain or alter the color of fabric. This is the most practical tip for the whole trip, and you should take it seriously. Do not wear your best swimwear here.
You may also want a simple cover-up and dry clothes for the ride back. The provided details do not promise changing facilities, so pack with the assumption that you will need to manage your own wet gear.
The crew can explain the volcanic setting while you are near the island. Panos has been praised for giving clear information without overloading the group, and the captains Alex and Dimitri have also been described as helpful with swim stops and local details. The exact crew member may vary, but the service is designed to combine boat handling with an introduction to the area.
Palea Kameni, Thirassia, and time in the water
The route information names Palea Kameni as the second stop, while the broader description also includes Thirassia. Both are part of the volcanic island setting around Santorini, and the trip is designed to include swimming or snorkeling in clear water near these areas.
Palea Kameni is closely tied to the hot-spring side of the outing. The water may be warm and sulfurous, so the same clothing warning applies. This stop is best for people who want a memorable swim rather than a conventional sightseeing cruise.
Thirassia offers a different view of the area. The boat lets you see the island from the water and may stop for swimming or snorkeling in clearer water. The point is not to race through a long checklist of sights. You get time to enjoy the sea, look at the rock, and settle into the rhythm of a private boat ride.
Snorkeling is described as enjoyable and easy, but the tour information does not specify the equipment provided. If snorkeling gear matters to you, confirm what is included before booking. The same applies if a particular stop is essential, since the exact route can be affected by weather and sea conditions.
You should also expect the sea to be the main event. This is not a land tour of Thirassia, and the information does not promise time ashore. If you want village streets, archaeological sites, or a long meal at a waterfront taverna, choose a different outing or add those plans separately.
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Greek food, wine, and a relaxed finish

One of the strongest parts of this cruise is the meal served on board. While you are swimming, the crew prepares traditional Greek food and wine for your return. The food has included a meze-style spread, homemade dishes, snacks, and refreshments.
That matters because the boat trip is not just a transport loop around the caldera. You have something pleasant to look forward to after getting out of the water, and the meal gives the cruise a more local feel. Panos and George have both been associated with preparing food aboard, and the meal has been described as a highlight of the outing.
Do not expect a formal restaurant service. This is food served on a boat during a short cruise. The supplied information does not list specific dishes or dietary options, so tell the provider about dietary needs before you go and confirm what can be prepared.
Wine and music help set an easy vacation mood. Still, the private format lets your group decide how much conversation, music, and quiet time you want. The captain is present to run the boat and help with the experience, but one account describes Dimitri as giving the family space rather than hovering over them.
What the private format really adds

At a price of $600.73 per group of up to six, this is not a cheap individual ticket. The value improves sharply when you fill the boat. Six people would pay about $100 per person, before any changes in the listed price. For a family or group of friends, that can be competitive with several separate seats on a premium shared cruise.
The private arrangement also gives you something a price comparison does not show. You are not sharing the boat with a large crowd, and you can spend the three hours in a more personal setting. Families with children can enjoy a swim stop without worrying about losing sight of the group. Couples or friends can have a quieter outing and eat together on board.
The value is less clear for one or two people. If you are traveling alone or as a pair, a shared boat may cost less. You are paying for privacy, flexibility, and the smaller setting, not for a full-day sailing trip or a long list of land visits.
The tour receives a five-star overall rating from 43 reviews, with 100 percent recommending it. One person gave four stars while still describing the captain, food, and hot springs positively. That is a useful reminder that the trip works best when your expectations match the product: it is a three-hour private swim and sightseeing cruise, not a full Santorini tour.
The captains and the style of service

The names connected with the boat include Alex, Panos, George, and Dimitri. Alex is described as a friendly skipper, while Panos is noted for explaining the area and helping with the meal. George has been part of the boat crew and food preparation, and Dimitri has been described as a calm guide who shared local details and allowed family time.
The service seems to combine practical help with a relaxed attitude. Captains check that people are comfortable in the water, explain what to expect at the hot springs, and suggest places to swim. This is especially useful if you are unsure about sulfur water or snorkeling.
The experience is also personal in a small way. The crew has been ready at the dock for arriving groups, and the company has been described as easy to contact when plans changed. Still, weather can affect the trip, so you should keep some flexibility in your Santorini schedule.
Who should book this trip
I would choose this boat for a family, a group of friends, or anyone who wants water time without joining a large excursion. It suits you if you value a quiet boat, local food, and a flexible feel more than a long list of formal sightseeing stops.
It is also a good fit for children and teenagers who want to swim. One family with children aged 13 and 15 found the hot springs and snorkeling enjoyable. The private setting can make the outing easier for a mixed-age group because everyone shares one boat and meal.
You should think twice if you do not like swimming, sulfur water, or getting wet. The volcanic stops are the heart of the trip, and the information does not promise extensive time on land. It may also be a poor match if your main goal is a sunset cruise, a full-day sailing, or a visit to several Santorini villages.
Practical details that can prevent trouble
Confirmation is received when you book, and mobile tickets are accepted. English is the offered language. The activity is near public transportation, and most people can participate.
Wear an old or black swimsuit. This advice is repeated for good reason, since sulfur can change the color of swimwear. Bring whatever personal items you need for swimming, but keep in mind that space on a small boat is limited.
The trip depends on good weather. If poor weather cancels the cruise, you can receive a different date or a full refund. You can also cancel for a full refund if you do so at least 24 hours before the local start time. Cancellations or changes made less than 24 hours ahead are not accepted for a refund.
Should you book Alex Private Boat?
Book it if you want a private three-hour cruise built around swimming, volcanic scenery, Greek food, and time with your own group. The best reasons are the small size, the hot-spring setting, the meal prepared aboard, and the chance to see Santorini from below the cliffs.
I would not book it as your only Santorini sightseeing plan. It does not replace time in Fira or Oia, and the supplied details do not promise a long visit ashore at Thirassia. But for a half-day addition to your island plans, it offers a friendly and memorable way to meet the caldera from the water.
FAQ
Where does the boat trip start?
The activity starts at Santorini Old Harbor in Fira, Greece.
Where does the activity end?
It ends back at the same meeting point, Santorini Old Harbor.
How long is the experience?
The cruise lasts approximately three hours.
How many people can join the private boat?
The listed price covers a private group of up to six people.
What places does the cruise visit?
The route includes Nea Kameni and Palea Kameni. The experience description also includes Thirassia, with swimming or snorkeling near the island.
Can I swim in the hot springs?
Yes. Swimming in the warm sulfur waters near the volcanic islands is a central part of the experience.
What should I wear for the hot springs?
Bring a black or old swimsuit because the sulfur in the water can affect the color of swimwear.
Is food included?
Traditional Greek food, snacks, refreshments, and wine are prepared and served aboard the boat.
Is the activity offered in English?
Yes. English is the listed language for the experience.
Can I cancel for a full refund?
Yes, if you cancel at least 24 hours before the local start time. If poor weather cancels the trip, you will be offered another date or a full refund.
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