From the Port of Kos: Full Day Boat Cruise to 3 Islands

The best part of this Kos boat trip is the mix of three very different island stops. You get a quiet hour in Vathi on Kalymnos, a proper swim from the boat at Plati, and time on Pserimos, rather than spending the whole day looking at islands from the rail.

I like the freshly prepared Greek lunch and the unusually friendly crew. I also like that this is a relaxed cruise, not a loud party boat, with soft music, affordable cocktails, and a good chance of seeing dolphins near the fish farms. The main drawback is that the boat can feel crowded, and wind may force the captain to change a swimming stop.

Key points

• Vathi on Kalymnos: Walk through a peaceful village set beside a natural fjord, with cliffs, coves, and caves around it.
• Plati swimming stop: Jump from the boat into clear turquoise water, with time to swim around the vessel.
• Pserimos visit: Spend about an hour exploring the island at your own pace, with another possible swim depending on conditions.
• Dolphin spotting: The route passes fish farms where wild dolphins are sometimes seen close to the boat.
• Greek buffet lunch: Expect souvlaki, salad, tzatziki, and bread, with beans and dolmades for vegetarians.
• Good-value pricing: At $35 per person, the cruise includes the boat ride, island stops, swimming, and lunch. Drinks cost extra.

Why this three-island cruise works so well

This is a full day at sea, but the schedule keeps changing. You are not trapped in one rhythm of cruising, eating, and waiting. First comes the open-water ride to Kalymnos, then a village visit, lunch, dolphin watching, swimming, cocktails, and another island walk.

That variety is the reason I would choose this trip over a simple beach transfer. You see a natural fjord, small island communities, rocky coves, and bright swimming water in one outing. You also get a little unplanned freedom at each stop, which is more pleasant than a tightly scripted shore excursion.

The boat leaves from the Odyssey vessel in Kos harbor, opposite the Port Police. Look for the blue boat named Odyssey and arrive by 9:30 to check your ticket. Hotel pickup is not included, so you need to make your own way to the port.

The advertised duration is 450 minutes, or seven and a half hours. Some recent departures have finished closer to seven hours, but you should still treat this as a full-day commitment. Bring enough sunscreen, water, and patience for a long time in the sun.

The sailing from Kos to Kalymnos

The first boat ride takes about an hour. This is a useful settling-in period. Find a seat, listen to the music, and take in the changing views across the Dodecanese.

Seating is generally described as comfortable enough for the day, with room to move around. Still, the boat may feel full, especially in the popular summer months. One practical complaint is that some tables or seats can feel tight when several people share them.

The front of the boat is a tempting place for photographs, but it can be wet when the sea is choppy. If you want a dry ride, sit farther back. If you want the best breeze and do not mind spray, the front can be fun.

The captain and crew play an important part in the atmosphere. The captain provides information about the islands and keeps an eye on the passengers, while the crew helps with food, drinks, boarding, and swimming stops. The tone is friendly and informal rather than formal or lecture-heavy.

Music plays throughout the day. It has been described as soft and well suited to the trip, though you should not expect a traditional Greek soundtrack all day. If Greek folk music is important to your idea of the perfect cruise, this may feel a little modern.

Vathi, Kalymnos, and its natural fjord

Vathi is the first major stop, on Kalymnos. The approach is the visual high point of the morning. You see a narrow natural fjord, rugged cliffs, surrounding gulfs, and caves as the boat reaches the village.

You have about an hour to explore. That is enough for a walk through the peaceful streets, photographs, and a taste of local specialties. It is not enough for a broad tour of Kalymnos, so think of Vathi as a short introduction rather than a full island visit.

I like this stop because it gives the cruise some local character. You are not only stopping at swimming spots. You can step ashore, see how a small island village feels, and spend time away from the boat.

Keep your expectations sensible. Vathi is a compact visit, and the schedule may shift if the captain makes an extra turn for dolphin watching. One recent departure reached the first island later after following dolphins, leaving less time there. That is a good trade for many people, but it shows why the timing is not rigid.

Take your camera, but also leave room for a slow walk. The fjord and cliff views are the main attraction, while the village itself is best enjoyed at an unhurried pace.

Lunch onboard: simple Greek food that fills you up

After Kalymnos, the boat serves lunch. The standard plate includes pork or chicken souvlaki, salad, tzatziki, and bread. The vegetarian meal replaces the meat with beans and dolmades.

This is not a fine-dining cruise, but it is a substantial and practical meal. The food is designed to keep you going through an afternoon of swimming and island walking. Portions have been described as generous, and the souvlaki is a reliable Greek choice for a group with different tastes.

Vegetarians should identify themselves to the crew before lunch. The crew has made this easy for couples and families by taking note of special meals early in the day. The vegetarian option can also suit a vegan diner if the tzatziki is left aside, since tzatziki contains dairy.

One small limitation is the salad. The meal may come with a cabbage-style salad rather than the tomato and cucumber Greek salad you might expect. That is not a serious problem, but it is worth knowing if you have a very specific idea of a Greek lunch.

Drinks are not included. Water, soft drinks, and cocktails are available at the onboard bar. Cocktail prices have been reported at around €6, and water has been available for about €1 during happy hour. Prices can change, but the bar is generally considered reasonably priced for a boat excursion.

Dolphin watching near the fish farms

After lunch, the boat passes nearby fish farms. This is where you may spot wild dolphins jumping close to the vessel.

No one can promise dolphins, of course. They are wild animals, and sightings depend on the day. But this route has produced memorable encounters, including groups of several dolphins close to the boat. You might also see flying fish.

The captain may turn back or make another pass if dolphins appear. That creates a genuine moment rather than a staged show, but it can also reduce time at a later stop. I would treat a dolphin sighting as a lucky bonus, not as the reason to book the cruise.

This part of the route also gives the day a slower pause after lunch. Instead of rushing straight to the next activity, you can stand at the rail, scan the water, and watch the crew search for movement. It is a simple pleasure, especially for children.

Plati: the best place to get in the water

Plati islet is the main swimming stop. The boat anchors in clear turquoise water, and you can jump directly from the vessel for a swim around it.

This is the point to bring your swimwear, towel, and sunscreen where you can reach them. Towels are not supplied. The water is the star here, and the stop gives you a refreshing break from the heat and the long ride.

You do not need to be an experienced swimmer to enjoy the view from the boat, but the activity is not ideal for anyone uncomfortable with boarding, ladders, or getting into open water. Children can enjoy it, and families have found the day suitable, but adults should supervise their own children closely.

Conditions matter. Wind can make it impossible to dock or stop at Plati. On one departure, the captain replaced the Plati visit with an additional bay stop at Pserimos. That is a sensible safety change, but it means the exact order and location of swimming stops can vary.

The stop is not a beach visit. You swim from the boat, not from a broad sandy shore. If you want to lie on a beach all afternoon, choose a beach excursion instead. If you like the freedom of jumping from a boat into open blue water, Plati is likely to be your favorite section.

Pserimos and the final island hour

The last island is Pserimos. You have about an hour to explore at your own pace, which gives the day a pleasant final land stop before the return to Kos.

Pserimos is useful because it slows the trip down again after the swimming stop. You can walk around, browse for souvenirs, speak with local islanders, or sit near the bay. The visit is short, so do not expect a full island tour or a long meal ashore.

Take cash. Restaurants and businesses on the last island may not accept cards. You do not need to spend money there, but a few euros are useful if you want a drink, snack, or souvenir.

The supplied details describe Pserimos as an island visit with swimming opportunities, while the more structured schedule lists it as a swim stop. In practice, conditions and timing can shape what happens. You may get time ashore, a swim in a nearby bay, or both.

The return sailing takes about 30 minutes according to the schedule. That gives you a final chance to sit with a cocktail, listen to music, and watch Kos come back into view.

What the $35 price really includes

At $35 per person, this is a strong value if you want a full day on the water. The price includes the cruise to three islands, swimming stops, and lunch. You would normally pay separately for transport, a meal, and a boat trip on a day arranged independently.

The price is especially good for families and couples who want variety without booking several separate activities. You get sightseeing, swimming, food, and a little island time in one package.

The low price does come with trade-offs. This is a shared boat, not a private yacht. Seating may feel crowded, the schedule may shift with weather and dolphin sightings, and drinks cost extra. You also need to reach the harbor yourself and bring your own towel.

The value is best if you will use every part of the day. If you dislike group excursions, want a quiet private deck, or prefer to spend hours on one beach, this may not suit you. If you want a straightforward island-hopping day with lunch included, the numbers work very well.

Who should book this day at sea

I would recommend the Odyssey cruise to couples, families, solo visitors, and groups who want to see more of the Dodecanese without arranging ferries or separate tours.

It is particularly good for you if:

• You want several short experiences rather than one long beach stop.
• You enjoy swimming from a boat.
• You like informal crews and a relaxed onboard mood.
• You want lunch included in the price.
• You are happy to share space with other people.
• You would enjoy the chance to see dolphins, without needing a guarantee.

Think twice if you have serious mobility limitations. The activity information calls the boat wheelchair accessible but also says it is not suitable for people with mobility impairments. That is a clear point to confirm directly before booking, especially because boarding, island access, and swimming ladders may present problems.

The tour is conducted in English. Free cancellation is available up to 24 hours before departure, and the reserve-now, pay-later option gives you some flexibility when planning.

What to bring for a better day

Pack a sun hat, swimwear, towel, sunscreen, and some cash for Pserimos. Keep your swimwear and towel handy rather than buried in a bag, since the first proper swim comes after lunch and the boat may not provide changing facilities.

Wear something comfortable for walking in Vathi and Pserimos. Secure your phone and camera when the sea is rough, especially if you sit near the front.

If you are prone to seasickness, ask the crew for help early. The staff have assisted passengers with seasickness medicine, but it is sensible to prepare before you leave Kos.

Should you book the Odyssey three-island cruise?

Book it if you want a well-priced, varied day with friendly service, a filling Greek lunch, clear swimming water, and short visits to Kalymnos, Plati, and Pserimos. The dolphins are a bonus, not a promise, and the scenery alone gives the trip plenty of appeal.

Skip it if you want privacy, a quiet luxury yacht, or a long uninterrupted stay on one beach. For most people who have one free day in Kos, though, the combination of fjord views, village walks, boat swimming, and island time makes this one of the more useful ways to get beyond the main island.

FAQ

Where does the boat leave from?

The Odyssey boat leaves from the harbor of Kos, opposite the Port Police. Look for the blue boat named Odyssey.

What time should I arrive?

You should be on the boat by 9:30 to check your ticket. The exact departure time can vary, so check availability when booking.

How long does the cruise last?

The listed duration is 450 minutes, or seven and a half hours. Some departures may finish closer to seven hours.

Which islands does the cruise visit?

The cruise visits Kalymnos, Plati, and Pserimos. The Kalymnos stop is at Vathi village.

Is lunch included?

Yes. Lunch includes pork or chicken souvlaki, salad, tzatziki, and bread. A vegetarian option includes beans and dolmades instead of meat.

Are drinks included?

No. Drinks are available to buy from the onboard bar, including water, soft drinks, and cocktails.

Is there a vegetarian meal?

Yes. Vegetarian food is available, with beans and dolmades replacing the meat. A vegan diner can avoid the tzatziki.

Can I swim during the cruise?

Yes. The cruise includes swimming stops, including a boat stop at Plati. Conditions may change the exact swimming location.

Are towels provided?

No. Bring your own towel, along with swimwear, sunscreen, and a sun hat.

Is the cruise suitable for wheelchair users?

The activity information describes the boat as wheelchair accessible but also says it is not suitable for people with mobility impairments. Contact the provider before booking to confirm that the boat and island stops meet your needs.