Full Day 3-Island Boat Cruise from Port of Kos

The best part of this Kos boat trip may be the dolphins. As the boat passes fish farms near Plati, wild dolphins often follow the fish and leap beside the boat. You also get a clear-water swim, two island stops, and a Greek lunch without arranging ferries or driving yourself.

I like the excellent value and the easy mix of sightseeing, swimming, food, and downtime. I also like that the crew keeps the day relaxed and family-friendly, with Captain Giannis often going out of his way to look for dolphins. The main drawback is comfort: the boat can feel crowded, seating is basic, and much of the seven-hour trip is in full sun.

At a glance

• Dolphin spotting near Plati: Fish farms attract wild dolphins, and the captain may alter course when sightings are reported.
• One hour in Vathi: Walk into Kalymnos’s natural fjord, sample orange juice and sweets, or see the old sponge trade.
• Swimming from the boat: Plati offers clear water, but access is by jumping from the side or using a ladder.
• Pserimos island time: Spend an hour on a small island with a shallow beach, paths, cafés, and a taverna.
• Greek lunch included: Expect pork or chicken souvlaki, salad, tzatziki, and bread, with a vegetarian option available.
• A full day for $36.28: Drinks cost extra, but the price covers a lot of coastline, food, and time on the water.

What this Kos cruise is really like

This is a full-day outing rather than a quick sightseeing cruise. You meet at the Port of Kos at 10 a.m., board the Odyssey, and spend about seven hours moving between Kos, Kalymnos, Plati, and Pserimos.

The route gives you three different kinds of island experience. Vathi on Kalymnos is a village visit. Plati is mainly a swimming and dolphin stop. Pserimos is a small beach island where you can slow down for an hour.

That variety is the reason I think this trip works so well for first-time visitors to Kos. You do not need to compare ferry schedules, book separate boat tickets, or decide how to reach the smaller islands. The tradeoff is that travel takes time, so the island stops are short and the boat becomes your main base for most of the day.

The boat holds up to 135 people. That is a useful detail when setting expectations. This is not a private sailing trip or a quiet yacht charter. In high season, it can feel full, especially if a large group takes over part of the seating area.

Still, the mood is generally described as relaxed rather than a hard-party cruise. Music plays during the journey, drinks are available, and the crew keeps the atmosphere friendly. Families can take part, including children, though parents should plan carefully for the sun and the swimming setup.

Entering Vathi through Kalymnos’s fjord

The first stop is Vathi, a village on Kalymnos. The boat enters a natural fjord, and the valley appears gradually between steep sides, gulfs, and caves. Have your camera ready as the boat moves inward. This is one of the most scenic parts of the morning.

You get about one hour ashore. That is enough for a short walk through the peaceful streets, a drink, or a taste of local sweets. Homemade orange juice is one of the small treats associated with the stop, and it offers a pleasant break from the boat’s bar service.

Vathi also gives you a glimpse into Kalymnos’s sponge-fishing past. The local sponge warehouses connect the village to the island’s long relationship with the sea. You will not have hours for a museum-style visit, but even a short walk helps make the place feel like a real village rather than a swimming stop built for excursions.

Keep your expectations sensible. One hour passes quickly, particularly if you want a drink, photos, and a walk. This is a taste of Vathi, not a full tour of Kalymnos. If Kalymnos is your main reason for visiting the Dodecanese, you should allow a separate day for the island.

For this cruise, though, the short stop is well judged. You see something different from the beaches and boat deck, then return to the Odyssey for the next part of the route.

Dolphins, Plati, and the clearest water of the day

On the way toward Plati islet, the boat passes fish farms. Fish attract wild dolphins, and this is where the dolphin sightings usually happen. Nothing in nature is guaranteed, but the crew watches for them, and Captain Giannis has been praised for responding when information about dolphin activity comes in.

Seeing dolphins in open water can become the emotional high point of the day. It is not a staged performance, and you may need to keep watching the sea rather than expect a scheduled show. Keep your phone or camera close, but do not let it stop you from looking up.

The boat then anchors near Plati, and the engines stop for a swim. The water is unusually clear, with the sandy bottom visible through blue and turquoise shallows. This is a beautiful place to cool off after the first island visit.

You have two basic ways into the water: jump from the side of the boat or use a ladder. The jump may be too high for some people, and the ladder is a vertical descent. If you are not confident in either option, you can stay aboard and enjoy the view. The swimming stop is not equally easy for every passenger.

The boat’s happy hour begins around this point, with cocktails sold at low prices. Drinks are not included, but the bar is part of the day’s appeal. Prices reported for the trip include cocktails around €6 and small cans of beer around €3.50, although prices can change. Bring cash, since it is specifically useful for onboard purchases and island cafés.

An hour on quiet Pserimos

Pserimos is the final island stop. During winter, only about 15 families live here, while summer brings more activity. That small permanent population gives the island a very different feel from Kos.

You get approximately one hour to explore. The shallow, sandy beach is the obvious choice if you want another swim. You can also walk along small paths or sit at a local café or taverna.

Pserimos is best approached as a simple pause, not as a sightseeing destination packed with landmarks. Its appeal is the beach, the quiet, and the chance to step off the boat once more. Some people may find there is not much to do beyond swimming, walking, and having a drink. If you need a long list of attractions, this stop could feel thin.

For me, that simplicity fits the day. After the longer boat ride and the excitement of dolphin watching, Pserimos gives you time to do very little. Bring a towel, sunscreen, and a relaxed attitude. You are visiting a small island for an hour, not trying to cover an entire region.

Lunch on the Odyssey

The included lunch is a Greek barbecue served on the boat. The standard plate includes pork or chicken souvlaki, salad, tzatziki, and bread. The meal is basic, but it is more substantial than a snack and saves you from having to search for food during a tightly timed island stop.

Food quality seems to be one of the pleasant surprises of the trip. The lunch has been described as tasty, fresh, and filling, though a few people found it merely adequate. That is a fair way to see it. You are paying $36.28 for a seven-hour boat experience, not a restaurant meal, and the lunch does its job well.

A vegetarian option is available, listed as beans and dolmades with salad, tzatziki, and bread. If you have dietary needs beyond that, the available information does not specify other choices, so ask the crew when you board.

Water, soda, and alcoholic drinks are not included. You can purchase them onboard. Since the boat can be hot and the journey is long, do not rely only on cocktails or soft drinks. Carrying sunscreen is essential, and bringing a bottle of water may be sensible even though bottled water is available for purchase.

Seating, shade, music, and comfort

The practical weakness is the boat itself. Seating can be uncomfortable over seven hours, especially compared with larger or more polished cruise boats. The vessel feels authentic and informal, but you should not expect cushioned lounge seating everywhere.

Arrive early if shade matters to you. Much of the journey is exposed to the sun, and seating is not reserved. A spot that feels fine at 10 a.m. may become unpleasant later. One useful tip is to tie down your hat, since the wind can carry it away.

The boat can become loud. Music helps create a holiday mood, but some people find it too loud, particularly when a big group is onboard. Smoking may also bother you if people around you smoke. These are not minor points for anyone who wants a quiet, polished sailing experience.

On the positive side, the boat has a bar and clean toilets, both of which matter on a long day at sea. The crew is often described as friendly, funny, helpful, and good at explaining how long you have at each stop. That clear timing makes the day easier: you know when to return and do not need to watch the clock constantly.

Who gets the best value from this trip

At $36.28 per person, the price is strong. You get transportation by sea, three island experiences, a swimming stop, possible dolphin watching, lunch, and crew service. Comparable value would be difficult to match if you tried to arrange the same day independently.

I would recommend it most to you if:

• You want to see more than Kos town in one day.
• You like a social boat with music and a bar.
• You are happy with short island visits rather than long exploration.
• You want a low-cost way to swim in clear water.
• You enjoy an informal, family-friendly atmosphere.
• You would rather let someone else handle the route and timing.

I would think twice if you want a quiet luxury cruise, generous personal space, or long time on each island. The boat may feel crowded in peak season, and the open seating means shade is not guaranteed. Anyone with limited mobility or low confidence in the water should also consider the swimming access, since the choices are a side jump or a ladder.

The tour has a 4.8 rating from 1,133 reviews, with 96 percent recommending it. Those figures match the main pattern of the experience: the crew, dolphins, scenery, food, and value earn the most praise, while crowded seating, sun exposure, and limited island time are the recurring concerns.

Booking details worth knowing

The cruise begins at the Port of Kos at 10 a.m. and returns to the same meeting point. It is offered in English, and your mobile ticket is accepted. The tour is near public transportation, and service animals are allowed.

Most people can participate, but the swimming stop requires care. If you are bringing children, keep them close around the boat’s edge and ladder. The trip is family-friendly in atmosphere, but the open sea and high side of the boat still demand normal swimming safety.

Free cancellation is available up to 24 hours before the start time for a full refund. Weather can affect the departure, and if poor conditions cancel the trip, you are offered another date or a full refund. A minimum number of participants is also required, with the same basic choice if the operator cancels for that reason.

Should you book the Odyssey?

Book this cruise if you want a busy but easy day that combines dolphins, swimming, Greek food, and small-island scenery for a low price. The strongest reasons are the friendly crew, the chance to see wild dolphins, and the smart mix of activity and relaxation.

Skip it if you need quiet, space, soft seating, or serious time on Kalymnos or Pserimos. For most people staying in Kos for a few days, however, this is a practical way to get out on the Aegean without spending much. Arrive early for shade, bring sunscreen and cash, secure your hat, and treat the island stops as brief tastes rather than full excursions.

FAQ

Where does the three-island cruise depart?

The cruise departs from the Port of Kos, Kos 853 00, Greece, at 10 a.m.

How long does the cruise last?

The activity lasts approximately 7 hours and 15 minutes and returns to the original meeting point.

Which islands does the cruise visit?

The route includes Vathi on Kalymnos and Pserimos, plus a swimming stop near Plati islet.

Is lunch included?

Yes. Lunch includes pork or chicken souvlaki, salad, tzatziki, and bread. A vegetarian option with beans, dolmades, salad, tzatziki, and bread is also available.

Are drinks included?

No. Alcoholic drinks, soda, and bottled water are available to purchase onboard.

Can I swim during the cruise?

Yes. The boat anchors near Plati, where you can swim around the boat in clear water. Access is by jumping from the boat or using a ladder.

Are dolphins guaranteed?

No. Dolphins are wild, but the fish farms near Plati attract them, and sightings often occur in that area.

How many people can join the cruise?

The maximum group size is 135 people.

What is the cancellation policy?

You can cancel at least 24 hours before the start time for a full refund. Poor weather or failure to meet the minimum number of participants may also lead to a different date or a full refund.