Kos Town: Kalymnos & Pserimos Day Cruise & Optional Transfer

The best part of this Kos boat trip is the mix of small-island beaches and clear-water swimming without the cost of a private charter. You sail from Kos to Pserimos, Plati, and Vathy, with time for a sandy beach, quiet coves, a Greek meal, and a possible dolphin sighting.

I like the exceptional value at $33, especially with lunch and the long day on the Aegean included. I also like the friendly, energetic crew, with team members such as Mike often leading the music, dancing, and dolphin-spotting fun. The main drawback is that the boat can feel busy, and the day is very sunny, so you need shade, water, and plenty of sunscreen.

At a Glance

• Pserimos gives you over an hour on a tiny island with a sandy beach, simple taverns, and only about 60 residents.
• Plati provides a memorable swim stop in clear water, with time to relax near this small, largely uninhabited island.
• Vathy combines a fishing village with Rina’s swimming spot, where you can swim or try the local cliff-jump platform.
• Lunch is included, usually built around Greek favorites such as souvlaki, salad, tzatziki, and fruit.
• Dolphins are a lucky extra, not a promise, but the crew may slow down and search for them.
• Hotel pickup is available from Kos Town, Psalidi, Agios Fokas, Lambi Beach, Tigaki, Marmari, Mastichari, and Kardamena.

Why This Boat Day Works So Well

This is a full-day outing, lasting about 450 minutes, but it is not a sightseeing trip packed with monuments or formal commentary. It is a day on the water. You move between islands, swim when the boat anchors, eat, listen to music, and spend time in places where the pace is slower than on Kos.

That makes the trip a good fit if you want a break from hotel pools and organized beach clubs. You see several islands in one day, but you are not expected to hike far or follow a demanding schedule. The main activity is simple: enjoy the sea.

The atmosphere leans social. The crew keeps people involved with music, dancing, and jokes, especially on the return sailing. If you prefer a quiet, low-key cruise, this may feel more like a party boat than a peaceful yacht outing. Music has been described as enjoyable and, on some departures, not excessively loud, but the tone clearly favors fun and participation.

The $33 price is the strongest argument in its favor. A full day on the Aegean, transport if selected, lunch, island stops, and swimming time usually make this a much better-value choice than booking separate boat transfers or paying for a private excursion. Drinks are extra, but onboard prices have been described as reasonable, with cocktails and happy-hour offers available.

Leaving Kos Harbor for the Northern Islands

The meeting point is Kos Port on Akti Kountourioti, close to the city center. Look for the boat named Poseidon. The exact vessel can occasionally change. Some departures have used Captain Morgan or MV Princess Diana, so do not be surprised if the boat name differs from the original plan.

If you are staying near the port, meeting there is straightforward and saves you an early vehicle ride. Pickup is available from a long list of resorts and towns, though the option must be selected when booking. Listed pickup times begin at about 8:00 a.m. in Kardamena, followed by Mastichari at 8:15, Marmari and Tigaki at 8:30, and Lambi at 8:45.

The transfer option covers Kos Town, Psalidi, Agios Fokas, Lambi Beach, Tigaki, Marmari, Mastichari, and Kardamena. Pickup has generally been well organized, though one delayed morning transfer reduced time at a stop. If you choose transport, be ready at the stated time and allow for a little flexibility.

Once aboard, the first sailing from Kos takes about an hour. This is a useful settling-in period. Find a place to sit, take in the view of Kos receding behind you, and decide how much sun you really want. The upper deck is tempting, but the sun is strong and there may be more competition for the best sunbeds. Arriving 15 to 20 minutes early helps if a particular seat matters to you.

Pserimos: A Small Island with a Long Beach Stop

Pserimos is the most relaxed stop of the day. The island has only around 60 inhabitants, and the settlement is small enough to feel very different from Kos Town. You get more than an hour here, usually enough time to sit on the sandy beach, swim, walk around, or stop at one of the taverns directly beside the water.

This is not a place for a long sightseeing program. Its appeal is the absence of one. You can order a drink, watch the boats in the bay, browse small shops, or simply get into the sea. The beach and clear water have been among the most praised parts of the day, and the stop gives you a welcome chance to move around after the first sailing.

Bring small expectations and a slow pace. Pserimos is appealing because it is tiny and quiet, not because it offers a packed list of attractions. If you want a long swim and an easy island break, this is likely your favorite stop.

The beach can also be busy when several boats arrive at once. Even so, the hour-plus visit gives you more breathing room than a quick photo stop. Keep an eye on the departure time, especially if you walk away from the waterfront.

Vathy and Rina: A Fishing Village with a Dramatic Inlet

Vathy is described as looking like a fiord, with the sea reaching into a narrow, sheltered setting. It is one of the more scenic parts of the day because it combines a village visit with time around Rina’s clear water.

The schedule allows about an hour for Vathy and lunch, though the exact order of the stops can vary by departure. This is your chance to see a traditional fishing village rather than only stopping at a beach. You can also eat at a local tavern if you prefer a restaurant meal, though lunch arrangements depend on the day’s plan.

Rina is known for swimming in clear water, and there is a cliff-jump platform used by people who want a little extra excitement. You do not need to jump. You can stay in the water at your own pace, remain aboard, or enjoy watching others take the plunge.

This stop suits mixed groups particularly well. Strong swimmers can make the most of the water, while less confident swimmers can choose a calmer role. One useful point: the swimming areas may be deep, so take a life jacket if you need one. The supplied details do not promise equipment for every person, so ask the crew before entering the water if you have concerns.

Plati: Swim, Lunch, and the Best Water of the Day

Plati is a small island near Kalymnos and is used mainly for a swim stop. The boat anchors near the coast, giving you time to get into the sea while the crew prepares lunch.

This is where the day feels most like a proper Aegean cruise. There is no long road transfer, no formal museum visit, and no need to rush through a town. You swim from the boat, look back at the rocky shore, and enjoy the open water around you.

The included meal generally features familiar Greek dishes such as souvlaki, Greek salad, tzatziki, and fruit. On some versions of the trip, lunch is served aboard, while another schedule places the meal at a restaurant in the village of Rina. This difference matters if you care about eating ashore rather than on the boat.

Food quality can vary. Many passengers have found the meal tasty and filling, while some have found it cold or preferred the food at a local restaurant. If lunch is important to you, check the day’s arrangement with the crew. Drinks are not included, though the onboard bar sells soft drinks, alcohol, and cocktails. Card payment has been accepted on some departures.

The Plati stop is not a long beach visit. It is mainly about swimming from the boat, so pack your swimsuit where you can reach it quickly. A towel, sunglasses, hat, and sunscreen are essential.

Dolphins, Music, and the Character of the Crew

Dolphins are not guaranteed, but sightings have been a frequent highlight. The crew may keep watch, change course slightly, and encourage everyone to look out from the deck. Some departures have seen several dolphins or a whole group near the boat, while other days have passed without a sighting.

Treat dolphins as a bonus rather than the reason to book. The islands and swimming stops make the trip worthwhile on their own. If dolphins appear, you may find the crew doing everything possible to give everyone a view.

The crew is one of the clearest strengths of this experience. Mike has been singled out for working hard to help people spot dolphins, and the wider team is known for getting people dancing on the return trip. Crew members may sing, serve drinks, organize happy hour, and keep the mood light throughout the day.

That energy is excellent for families with older children, couples, solo visitors, and groups who enjoy meeting people. It is less suited to anyone seeking a silent sailing with naturalist commentary. The crew speaks English, and a host or greeter is provided.

Is the Boat Comfortable or Crowded?

The boat has been described as clean, comfortable, and spacious enough on many departures. It is not a private yacht, however. In high season, the deck can feel crowded, and sunbeds may fill quickly. Arrive early if you want a prime place to lie down.

Crowding also depends on the departure date and the boat used. Some days feel pleasantly open, while others are busier. The stops help because people spread out on the islands or get into the water, but the sailing portions can feel lively.

You should also prepare for sun exposure. Several hours outdoors can catch you off guard, even with a light breeze. Wear a hat, use sunscreen repeatedly, and take breaks in the shade. One practical tip is to bring a cover-up or light shirt for the return sailing, when tired skin is more likely to burn.

The crossing can be rough on some days. If you are prone to seasickness, sit where the boat moves least, look toward the horizon, and bring any medication you normally use. The supplied information does not promise a smooth sea.

Who Should Book This Kos Cruise?

I would choose this trip if you want a lot of scenery and swimming for modest cost. It is especially good for:

• Couples looking for a full day away from Kos
• Families with older children who enjoy swimming and music
• Solo visitors who like a friendly, social setting
• Budget-conscious visitors who want several islands in one outing
• Anyone curious about Pserimos and smaller Dodecanese stops

I would think twice if you want a private, quiet boat, long independent walks, or a carefully guided cultural tour. The stops are fairly short, and the focus is on sea time rather than detailed island exploration.

The trip also suits people who want flexibility. You can swim, sit in the shade, eat at a tavern, buy a drink, or simply stay aboard. You are not forced into every activity, though the crew may encourage you to join the fun.

Practical Details That Make the Day Better

Wear comfortable shoes for the islands, but keep swimwear and a towel easy to reach. Bring sunglasses, a sun hat, and sunscreen. A waterproof bag for your phone and wallet would also be sensible, though it is not listed as a required item.

The price includes the cruise, lunch, visits to Pserimos and Plati, swimming stops at Plati and Rina, and hotel pickup and return if you select that option. Drinks are not included. At $33, the package offers unusually strong value, even if you buy a drink or cocktail onboard.

Free cancellation is available up to 24 hours before departure, and you can reserve now and pay later. Check availability for the current start time because pickup and sailing times differ by location.

Should You Book the Poseidon Day Cruise?

Book it if you want a cheerful, affordable day on the sea with several swimming opportunities and a taste of small-island life. Pserimos is the quietest and most memorable beach stop, while Rina and Plati provide the clearest reason to pack your swimwear.

I would not choose it for solitude or a polished luxury experience. The boat may be busy, lunch can be uneven, and the crew’s enthusiasm is part of the package. For most people, though, the combination of islands, clear water, included food, friendly service, and possible dolphins makes this one of the better-value day trips from Kos.

FAQ

Where does the Kos boat cruise start?

The meeting point is Kos Port on Akti Kountourioti, close to Kos Town. The boat is generally named Poseidon.

Is hotel pickup available?

Yes. Pickup is available as an optional choice from Kos Town, Psalidi, Agios Fokas, Lambi Beach, Tigaki, Marmari, Mastichari, and Kardamena.

How long does the experience last?

The activity lasts about 450 minutes, or roughly 7.5 hours.

Which islands does the cruise visit?

The trip includes Pserimos, Plati near Kalymnos, and Vathy. Swimming stops include Plati and Rina.

Is lunch included?

Yes. Lunch is included and may feature dishes such as souvlaki, Greek salad, tzatziki, and fruit. Depending on the departure arrangements, the meal may be served on the boat or at a local restaurant.

Are drinks included?

No. Drinks are available to buy, including soft drinks, alcohol, and cocktails.

What should I bring?

Bring comfortable shoes, sunglasses, a sun hat, swimwear, a towel, and sunscreen.