Poliegos is the star here: an uninhabited Cycladic island with clear turquoise water, sea caves, pale beaches, old mine ruins, and quiet anchorages that feel far removed from the ferry routes. You move from one swimming stop to the next rather than sit on one crowded beach all day.

I like the private format for its flexibility, especially the choice to spend longer at Soufi Beach or add Kimolos port for coffee and lunch. I also like the human touch from skippers such as Riris, Dinos, and Antonis, who are described as friendly, funny, attentive, and good at adjusting the day to the group.

The main drawback is the price: $1,533.74 per group is a serious spend for six hours. The route also packs in many stops, so you should expect a brisk boat day, not a slow, restful cruise with long stays at every beach.

Key points to know before you book

• Poliegos supplies the biggest wow moments: Fanara cave, Blue Bay, Myrsini, and several small coves bring striking water color and rock formations.
• The private boat fits up to seven people: That makes the cost easier to justify for a family or group sharing the full price.
• You leave from Platis Gialos marina in Sifnos: The route runs first to Kimolos, then across to Poliegos.
• Swimming time is built into the schedule: Several stops last about 20 to 45 minutes, with snorkeling possible at one secluded southern cove.
• Kimolos port gives you a land-based option: You can stop at Psathi or Psatha for coffee or lunch at To Kyma, if the group prefers.
• Weather matters: Poor conditions can lead to a new date or a full refund, and changes or cancellations must be made at least 24 hours ahead.

Why this private boat day works so well

This is not a sightseeing cruise where you stay on deck and point a camera at distant islands. It is a water-first day, built around entering coves, swimming from the boat, looking into caves, and moving on when the group is ready.

You begin at Platis Gialos marina on Sifnos and head southwest through the Kitriani-Sifnos strait. After roughly 9 nautical miles, the boat reaches northern Kimolos. That opening run matters because it quickly shifts the mood from a familiar beach resort to a quieter corner of the Cyclades.

The private setup is the biggest practical advantage. You are not sharing the boat with strangers, and the group can express a preference for swimming, photography, a meal ashore, or simply more time in the water. The listed capacity is seven people, so this is best considered a small-group charter rather than a solo excursion.

The skipper makes a real difference on a day like this. Riris is repeatedly singled out for warmth, care, music choices, and knowing unusual places. Dinos is praised for patience and help throughout the day, while Antonis is described as cheerful, humorous, and willing to follow suggestions. The exact skipper may vary, but the company’s personal approach is a clear part of the appeal.

Soufi Beach on Kimolos, the quiet opening stop

The first stop is Soufi Beach on Kimolos, a secluded bay that the team calls Valium. That nickname tells you what the place is meant to feel like: calm, still, and removed from the usual island rush.

You have about 35 minutes here, with time to swim in clear turquoise water. It is a short stop, but a useful first taste of the day. After the boat ride from Sifnos, you can get into the water quickly instead of waiting until later in the route.

Soufi Beach is also a good test of how your group wants to spend the day. If everyone is eager to swim, you can make the most of the stop. If you prefer photographs and a little quiet time, the bay offers that too.

Do not expect a long beach visit. The schedule moves on after roughly half an hour, and the main concentration of sights comes later around Poliegos. Still, starting at Kimolos gives you a gentler introduction before the more dramatic cave and rock stops.

Fanara cave and Faros lighthouse on Poliegos

The boat then crosses about 5 nautical miles to Poliegos, an uninhabited island. The first major stop is Fanara, an open-roof cave with unusually clear blue water and colorful volcanic rock walls.

This is one of the places where a private boat is especially useful. You can enter the cave by boat, swim inside if you wish, and take photographs from the rock in the middle. The open roof lets daylight reach the water, creating the sort of scene that is easy to remember but difficult to capture properly with a phone.

From Fanara, the route continues south to Faros Bay. The lighthouse here was built in 1898 by the British and remains operational. It adds a bit of human history to a day otherwise shaped by rock, sea, and swimming.

You spend about 45 minutes at Faros. The stop includes turquoise water, a small lake, and a beach visited by wild goats. If you bring fruit, vegetables, or snacks, you may be able to feed them on the beach, since they expect an occasional treat.

Use some judgment with the goats. Feeding them can be fun, especially for children, but keep food controlled and do not let the animals dominate your stop. The best part of Faros is still the water and the unusual mix of lighthouse, lake, beach, and rocky island surroundings.

The southern coves of Poliegos

After Faros, the boat passes a rock shaped like an Indian totem and rounds the southern end of Poliegos. If north winds have made the earlier water choppy, this turn can bring a noticeable change. The southern side is sheltered from those winds, and the sea may become much calmer and more turquoise.

The next anchorage is a small, secluded bay suited to snorkeling. You get at least 45 minutes here, which is one of the longer water stops on the route. That extra time matters because snorkeling is far more enjoyable when you are not rushing straight back onto the boat.

No specific snorkeling equipment is listed, so confirm what is supplied before setting out. The attraction is the clarity of the water and the sense of having a small cove to yourself, not a formal guided snorkeling program.

This is also a good place to remember that conditions can shape the day. The skipper may adjust the route around wind and waves. That is a benefit of a private boat, but it also means the exact order or length of stops can change.

Kalogeroi, old mines, and Poliegos Beach

The route continues toward Kalogeroi Bay, marked by white and pink pebbles and pale rock formations. You pass the remains of old mines, then continue west past rocks shaped like sailboats.

The boat enters more caves so you can see the water from inside. These short passages add variety to the day. You are not only stopping at beaches, you are also seeing how the island’s rock forms arches, walls, and sheltered pockets along the coast.

Poliegos Beach follows, with about 20 minutes at anchor. The water here is exceptionally clear and bright, and the description of it as pool-like is easy to understand once you consider the calm, shallow-looking color from the boat.

Twenty minutes is enough for a quick swim and photographs. It is not enough for a long beach stay or a leisurely picnic, so keep your expectations aligned with the route. The boat day is about collecting several different coastal scenes rather than settling into one place.

Blue Bay and Myrsini Beach

After only about 200 meters, the boat reaches Blue Bay. This is presented as one of the finest water stops on Poliegos, and you have another 20 minutes to swim.

The close spacing of Poliegos stops is useful. If one cove is breezy or the boat is busy with photographs, another beautiful anchorage is just around the coast. It also means the day feels full, with little dead time between the island’s main coastal sights.

The final Poliegos stop is Myrsini Beach, where you stay about 20 minutes. Expensive yachts often anchor here, which gives you a clue about the appeal: clear water, a white sandy beach, and a polished, postcard-like setting.

Myrsini is a good place for photographs, but it may not feel as secluded as the smaller coves. If you want the quietest possible setting, the southern anchorage or Soufi Beach may suit you better. If you want to see one of the island’s most sought-after swimming spots, Myrsini earns its place on the route.

Kimolos port, lunch, and the return to Sifnos

The final part of the day returns to Kimolos. If the group wants a break from the boat, you can visit the port, known as Psathi or Psatha, for coffee or lunch at the seaside taverna To Kyma.

This option is valuable because six hours of swimming and sun can leave you ready for something more substantial. It also gives the day a touch of local island life instead of making the entire outing a sequence of anchorages.

Afterward, the route can continue along Kimolos’ eastern beaches, including Goupa Kara and Prassa. Prassa is considered the most beautiful beach on Kimolos, so this portion may be the deciding factor for anyone who wants to compare the two islands rather than focus only on Poliegos.

The listed final section takes about 2 hours and 55 minutes, including the return toward Sifnos and Platis Gialos. That is a substantial amount of the six-hour outing, though it includes the Kimolos options and the trip back. You should not read it as nearly three hours of beach time.

What the $1,533.74 price really means

At $1,533.74 for up to seven people, the cost is high for a half-day outing. Split seven ways, it works out to about $219 per person before considering any group smaller than the maximum. A couple or small family will feel the price much more sharply.

The value comes from what you are buying: a private boat, a skipper, a route across two islands, and the ability to shape the stops around your group. You also avoid paying for a generic harbor cruise that may not visit the less accessible coves.

For a group of five to seven, the charter can make practical sense, especially if everyone wants the same kind of day. For two people, I would book it only if private access, flexibility, and the particular Poliegos route matter more to you than keeping costs low.

The experience is also a better value for people who will actually use the swimming stops. If someone in your party dislikes boats, sun, caves, or repeated swims, the price will feel harder to defend.

Who should book this outing

I would choose this tour for a family, a group of friends, or a couple celebrating a special day. It suits people who want several swimming spots and who prefer a private skipper to a fixed group schedule.

Children can enjoy the cave, goats, bright water, and short boat hops, while adults may appreciate the freedom to alter the pace. One family outing even combined the sea stops with ice cream at Stavento in Kimolos and a meal at Prassonisi restaurant, showing how easily the day can become part boat trip and part food outing.

You should be comfortable spending much of the day in the open air. There are multiple swim stops, and the boat travels between islands. The tour is listed as suitable for most participants, but anyone with serious motion or mobility concerns should ask the operator for details before booking.

The company has a perfect recommendation rate from 13 ratings, with repeated praise for skipper manner, care, music, and local route knowledge. That is a small sample, so I would treat it as encouraging rather than absolute proof. Still, the praise is consistent across different skippers and types of groups.

Timing, weather, and practical planning

The tour lasts about six hours and departs from Platis Gialos marina in Sifnos. It is offered in English, uses a mobile ticket, and is a private activity for your group only.

Plan your day around the weather. The outing requires good conditions, and poor weather can lead to a different date or a full refund. Winds matter even during the tour, since the skipper may use the sheltered southern side of Poliegos when the north side is rougher.

Bring any snacks you may want, especially if feeding the goats is part of your plan. A stop at To Kyma can provide coffee or lunch, but the timing depends on your group’s choice and the skipper’s route.

The cancellation terms are straightforward: cancel at least 24 hours before the start time for a full refund. Within 24 hours, changes are not accepted and the amount paid is not refunded. Confirmation is normally issued when you book, though bookings made within eight hours of departure are confirmed as soon as possible, subject to availability.

Should you book the Kimolos and Poliegos charter?

Book it if your priority is water access, secluded coves, and a flexible day shared only with your own group. Poliegos supplies the strongest scenery, while Kimolos adds a quieter beach opening, port options, and a final run along its eastern coast.

Skip it if $1,533.74 is beyond your comfort zone, if you want a full-day land tour, or if your group would rather spend hours on one beach. For a group of seven that loves swimming, the private format can justify the cost. For a smaller group, you need to value privacy and variety very highly.

This is a packed six hours, but it is packed with the right things: clear water, caves, lighthouse views, pale beaches, and a skipper who can adjust the route to the wind and the mood on board.

FAQ

Where does the tour depart from?

The boat departs from Platis Gialos marina on Sifnos.

How long does the tour last?

The tour lasts approximately six hours.

How many people can join the private boat tour?

The private tour is available for a group of up to seven people.

Which islands does the tour visit?

The route visits Kimolos and Poliegos, departing from Sifnos.

Can I swim during the tour?

Yes. Swimming is included at Soufi Beach, Faros Bay, a secluded southern cove on Poliegos, Poliegos Beach, Blue Bay, and Myrsini Beach.

Is snorkeling possible?

Yes. The secluded southern bay of Poliegos is described as ideal for snorkeling.

Can I visit Kimolos port?

Yes. If you wish, the boat can stop at Kimolos port, also called Psathi or Psatha, for coffee or lunch at To Kyma.

Can I feed the goats at Faros Bay?

You can feed the goats on the beach if you bring snacks, vegetables, or fruit. The goats are described as expecting occasional treats.

Is the tour offered in English?

Yes. The experience is offered in English.

What happens if the weather is poor?

If poor weather causes cancellation, you will be offered a different date or a full refund.

How late can I cancel for a full refund?

You must cancel at least 24 hours before the experience start time for a full refund. Cancellations within 24 hours are not refunded.