Catamaran Full Day Cruise: Poliegos – Kleftiko

Kleftiko is the star, but Poliegos and its Galazia Nera lagoon are what give this full-day cruise extra value. You sail from Adamas along Milos’ volcanic coast, pass the colorful fishing villages of Klima and Skinopi, swim from the catamaran, and reach places that roads cannot touch.

I especially like the small maximum group of 22 and the generous food service. The crew serves fruit and snacks, a full cooked Greek lunch, desserts, soft drinks, water, beer, wine, and other alcoholic drinks. The main thing to consider is the open-water sailing: high summer winds can make parts of the route choppy, and there is a lot of sun.

At a glance

• Kleftiko by catamaran: Spend about two hours around the old pirate bay, with white rock walls, sea caves, and clear water.
• A rare Poliegos stop: Swim at Galazia Nera, a natural lagoon with especially blue, transparent water.
• Food is a major part of the day: Expect fruit, snacks, a generous homemade-style lunch, drinks, and sweet treats.
• A personal-size cruise: The boat takes no more than 22 people, giving the day a quieter feel than a large excursion boat.
• Several boat-only coves: Kalogries, Sikia, Gerakas, and other coastal sites are easiest to appreciate from the water.
• Flexible route: Captains such as George and Nick may reverse the schedule or change stops when wind and sea conditions call for it.

Why this Milos cruise is worth a full day

Milos is often presented as a beach destination, but its best scenery is along the coast. A road can take you near some beaches, yet it cannot bring you into Kleftiko’s caves or across to the blue waters of Poliegos. This cruise lets you see the island from the angle that makes its volcanic rock formations and bright water most striking.

The day begins at 9:00 a.m. at Milos Adventures in Adamas and lasts about nine and a half hours. You finish in Pollonia, with a van transfer back toward Adamas. Because the trip covers a large stretch of coastline, you get more than a quick swim stop and a pretty boat ride. You get a full day at sea, with several chances to swim and plenty of time to relax between them.

The catamaran carries a maximum of 22 people. That matters. You have more room to sit in sun or shade, and the crew can give more individual help with masks, pool noodles, food, and getting into the water. Captains and crew members named in the trip feedback include George, Nick, and Elias, though the exact team can vary.

Leaving Adamas past Milos’ fishing villages

The first part of the cruise follows the coast beyond Milos Bay. You pass Skinopi, Klima, Areti, and Fourkovouni, where small fishing homes sit beside the sea. Their colorful boat garages, known as sirmata, were built into the shoreline and are one of Milos’ most recognizable sights.

This is a good early reminder that the cruise is not only about swimming. The coastline tells you something about how people used the island’s shore, while the boat gives you a clear view of the houses and rock formations from below.

Near the entrance to the western coast, you pass Arkoudes, a group of lava rocks shaped somewhat like a bear. The name means bear, and the formation is a quick but memorable example of Milos’ volcanic character. The skipper may provide background as you sail, but this is not a lecture-heavy sightseeing trip. The emphasis stays on the sea, the scenery, and time in the water.

Kalogries: your first swim from the boat

The first main stop is Kalogries, a natural bay near Cape Vani. The catamaran opens its sails as it heads toward the cape, then stops in water suited to a first swim. You can jump directly from the boat into the clear bay.

This stop helps you settle into the rhythm of the day. You are not rushed ashore, and there is no need to find a beach entrance or carry your things across sand. You swim, use the available flotation aids, and climb back aboard for refreshments.

The swimming gear includes masks and snorkeling equipment, although one detailed account specifically noted that a mask was supplied but a separate snorkel was not always available. If snorkeling matters to you, bring your own mask and snorkel to be safe. Pool noodles and life jackets are useful for weaker swimmers, and the crew can help make the water more approachable for people who are not fully confident.

Bring a towel, though. Towels are not listed among the inclusions, and the sun is strong between swims. A long-sleeved cover-up will also make the ride more comfortable.

Sikia Cave and the volcanic coast

After Kalogries, the catamaran heads toward Sikia Cave. The boat pauses so you can look into the cave and see the distinctive opening in its roof. The sight is more about viewing than a long swim stop, but it adds variety to the route.

Sikia shows why a boat is the right way to explore this side of Milos. The cave entrance, pale rock, and opening overhead are difficult to understand from land. From the water, the shape becomes clear, and the skipper can position the boat for photographs.

The route then continues toward Kleftiko. This stretch can be exposed to wind, especially during the summer season. One group had the itinerary reversed to make the ride more comfortable, so do not worry if the order changes. The skipper has discretion to adjust the plan for weather and sea conditions.

Kleftiko: the main event

Kleftiko is the most famous stop, and the cruise gives you roughly two hours around the old pirate bay. White rock pillars rise from clear water, and caves cut into the cliffs along the coast. The crew guides you toward the best places to swim and explore.

This is where the trip feels most different from a standard beach outing. You can swim into sea caves, look beneath the surface at the rock colors, and see formations that are reachable only from the water. Bring a waterproof phone case or underwater camera if you have one. The water clarity makes this one of the strongest photo stops of the day.

The boat serves lunch after the swim. This is not just a sandwich handed out on deck. The meal includes several Greek dishes, with enough food for seconds and, according to the detailed trip feedback, sometimes thirds. Homemade-style dishes, fruit, desserts, and baklava have all been part of the food service. The crew can address specific dietary requirements if you provide them when booking, including allergy concerns.

The timing is well judged. You swim while the crew prepares the meal, then return to a proper spread. Drinks are available through the day, including bottled water, soft drinks, beer, wine, and other alcoholic beverages. If you plan to drink, remember that the sea can be moving and the day is long.

Gerakas, Firlingos, and the route toward Poliegos

After Kleftiko, the catamaran follows the coast past Gerakas and Firlingos. Gerakas is known for its beach and hot spring, while Firlingos adds another colorful coastal stop. The exact amount of time at each place can depend on the sea and the skipper’s plan.

This part of the route gives you a quieter interval after Kleftiko. You can stay on deck, dry off, eat a snack, and watch the coast pass by. Fruit and sweet treats may appear between the major meals, which is useful because a full day of swimming builds an appetite.

The boat also passes the abandoned sulphur mines before setting course for Poliegos. These old industrial remains add a different note to the day. Milos has long been shaped by mineral extraction as well as fishing and tourism, and the mine buildings offer a glimpse of that working past without requiring a separate land visit.

Galazia Nera on Poliegos

The final swim is at Galazia Nera on Poliegos, a nearby island. Geological formations create a lagoon-like setting, and the water here is described as especially clear and intensely blue.

This stop is a strong reason to choose the full-day cruise instead of a shorter version. The half-day option may cover many of the Milos coves, but the longer trip reaches Poliegos and its final lagoon. You get an open-water crossing to another island and a setting that feels distinct from Kleftiko.

The tradeoff is that open water can be choppy. If you are prone to seasickness, sit near the center of the catamaran, keep your eyes on the horizon, and avoid overdoing alcohol before the crossing. The tour requires good weather, and the captain can change the program when conditions are not suitable.

Food, drinks, shade, and the feel on board

Food is one of the strongest parts of this cruise. The day typically includes a first snack or fruit serving, a full lunch, later fruit or cake, and drinks throughout. The menu is not given in a fixed format, so you should not book expecting one exact dish, but the emphasis is clearly on a generous Greek meal prepared on board.

The catamaran has seating in both sun and shade. That is important on a nine-and-a-half-hour outing. You can move between the two, but shade may become popular during the hottest part of the day, so bring a cover-up and reapply sunscreen often.

The atmosphere is social but not designed as a loud party boat. Music may play, though the amount can depend on the group and the crew. Captains George and Nick are described as warm and engaged, while Elias has been involved with both service and cooking on some departures. The crew’s strongest role is practical: helping with swimming, keeping drinks moving, preparing food, and making sure people are comfortable.

Price and value at $253.97

At $253.97 per person, this is not a budget boat ride. It becomes better value when you count what is included: a full day on the water, a guide and crew, several swimming stops, snorkeling equipment, lunch, snacks, bottled water, soft drinks, and alcoholic drinks.

You are also paying for access to places that would otherwise require a private boat or a separate excursion. Kleftiko alone is a major Milos attraction, but adding Poliegos, Sikia, Kalogries, Gerakas, and the sulphur mines gives the day real range.

A private charter would offer more control, but it would usually cost far more per person. A larger public boat might cost less, but the smaller 22-person limit and personal service are part of this trip’s appeal. I would consider it good value for couples, families with older children, and small groups who want one major sea day rather than several shorter beach trips.

Who should book, and who should think twice

You should consider this cruise if you want:

• Boat-only access to Kleftiko and remote coves
• Several proper swimming stops rather than a sightseeing cruise with one quick dip
• A small group and plenty of food
• A relaxed day that combines scenery, swimming, and local-style cooking
• A chance to visit Poliegos, not just Milos’ main coast

It is not suitable for children under seven or people with mobility problems. Most travelers can participate, but you need to be comfortable boarding a catamaran, moving around the deck, and getting into the sea from the boat.

This is also a poor fit if you want a fixed schedule. Wind can alter the order, route, and stops. The crew may reverse the itinerary to reduce rough sailing, which is sensible but means the day will not always follow the same sequence.

The meeting point is Milos Adventures in Adamas at 9:00 a.m. The published plan says the boat disembarks in Pollonia and provides a van back to Adamas, but one departure ended in Adamas and required a separate taxi for someone staying in Pollonia. Confirm the return arrangement before booking, especially if your hotel is in Pollonia.

A valid passport is required on the day, and passport details for all participants are requested at booking. The tour is offered in English, allows service animals, and is near public transportation. Free cancellation is available up to 24 hours before the start time. If bad weather cancels the trip, you can choose another date or receive a full refund.

Should you book this Milos catamaran cruise?

I would book it if your Milos plans include one big day at sea. The combination of Kleftiko’s caves, Poliegos’ Galazia Nera lagoon, and a generous onboard meal gives this cruise more substance than a simple coastal ride.

Book early if your dates are fixed, since it is often reserved well ahead of time. Pack a towel, sunscreen, a cover-up, swimwear, and your own snorkel if you care about exploring underwater. Skip it if you dislike open-water crossings, need easy access for mobility, or prefer a tightly fixed schedule.

For most visitors who can handle a long day in the sun and sea, this is one of the better ways to understand why Milos is best seen from the water.

FAQ

Where does the cruise start?

The cruise starts at Milos Adventures in Adamas at 9:00 a.m.

Where does the cruise end?

The planned disembarkation point is Pollonia, with a van transfer back to the starting point in Adamas. The return arrangement can vary, so confirm it before departure if you are staying in Pollonia.

How long does the cruise last?

The experience lasts approximately 9 hours and 30 minutes.

Is lunch included?

Yes. Lunch, snacks, beverages, bottled water, and alcoholic drinks are included. The crew prepares lunch on board.

Is snorkeling equipment provided?

Yes. Snorkeling equipment is included. You may want to bring your own snorkel because availability of separate snorkels can vary.

Is the cruise suitable for children?

The cruise is not suitable for children under seven years old.

Can people with mobility problems join?

No. The cruise is listed as unsuitable for people with mobility problems.

What happens if the weather is bad?

The program may change based on weather and the skipper’s decision. If poor weather causes cancellation, you can receive a full refund or choose another date.