The best part of this Kos boat trip is the variety packed into seven hours at sea. You move from open-water dolphin watching to Kalymnos, then stop for swimming at Platy and Pserimos. The 80-foot wooden yacht gives you room to stretch out, find shade, or settle on a cushioned sundeck.

I like the three-island route and the fact that lunch is included rather than leaving you to hunt for food between stops. I also like the friendly, multilingual crew, with Ariel singled out for making the day especially cheerful. The main caution is rough water: on windy days, spray can soak the lower deck, and the vegetarian meal may be little more than salad and bread.

Key points at a glance

• Three very different stops: See Kalymnos town, swim near Platy, and spend time around the small island of Pserimos.
• An 80-foot wooden yacht: There are cushioned sundecks, a shaded area, and a bar for paid drinks.
• Dolphin watching: The boat allows about 15 minutes to look for dolphins, but sightings are not guaranteed.
• Lunch is included: One free beverage comes with the meal, with vegetarian and vegan options advertised.
• Good value at $35: The price covers the boat, lunch, one drink, and a full day on the water.
• Weather matters: Strong waves can make the ride wet and chilly, even under a warm Greek sun.

A full day from Kos, with three island personalities

This is not simply a long swim cruise. The appeal is the changing rhythm of the day. You leave from the Santa Maria and Captain Hook wooden boats, spend time scanning the sea for dolphins, walk through part of Kalymnos, then return to the water for swimming at Platy and Pserimos.

At $35 per person, the outing offers a lot for the money. A boat trip alone can cost a fair share of that amount, and here you also receive lunch and one free beverage. You should still budget extra for drinks from the bar, since those cost more.

The mood is relaxed rather than formal. You can stretch out on padded sun decks, sit under cover, or use the boat as a base between swims. The yacht is large enough to avoid feeling like a cramped speedboat, though a full-day boat trip still means you should be comfortable with sun, wind, spray, and a fair amount of time at sea.

Setting out on the Santa Maria wooden yacht

The meeting point is at the Santa Maria and Captain Hook wooden boats, where the crew waits for you. Since the experience begins and ends there, you do not need to manage several transfers during the day.

The vessel is an 80-foot wooden yacht with cushioned sun decks, a shaded section, and a modern bar. A boat of this size gives you a useful choice of spaces. You can claim a sunny spot for the views, move into shade when the heat builds, or find shelter if the wind picks up.

I would not treat the sundeck as a guarantee of calm. On a rough day, the exposed upper area may be more comfortable than the lower deck because spray can reach passengers below. At the same time, the top deck offers less protection from the sun, so bring a hat and sunscreen and use the shaded area at intervals.

The crew speaks English, German, Greek, Italian, Dutch, and French. Ariel is specifically noted for her warm, festive approach, while other feedback praises the staff for being helpful and friendly. That language range is useful on a mixed international boat, especially when the schedule and swimming instructions need to be clear.

Fifteen minutes watching for dolphins

One of the first memorable moments comes in open water, with about 15 minutes set aside for dolphin watching. The boat gives you time to scan the surface and watch the sea rather than treating the ride only as transportation.

Dolphin sightings are possible, not promised. Several people did see dolphins, which makes the moment feel like a real bonus, but nature does not run on a tour timetable. Keep your expectations sensible and enjoy the open-water ride even if the animals stay out of sight.

This is also a good time to settle into the boat. The Dodecanese water can look remarkably clear and blue, and the wide view helps you understand the geography of the day. You are not just stopping at isolated beaches. You are moving through a group of Greek islands, each with a different feel.

If you are prone to seasickness, the rough-water warning deserves attention. Strong waves caused spray to soak some lower-deck passengers during the first two crossings, and the wind made some people cold despite temperatures around 30 C. A light layer is a smart addition to your beach bag.

Kalymnos and the character of Vathy

Kalymnos is the cultural stop, and it gives the trip more substance than a string of swimming breaks. The boat provides sightseeing time along the coast before you visit the island for lunch and free time.

The schedule allows about 30 minutes on Kalymnos for a visit, meal, and free time, while the wider Kalymnos segment includes roughly 80 minutes of sightseeing cruise time. You should not expect a full island tour in that window. Instead, think of it as a short introduction, with enough time to see a port area and walk through picturesque lanes.

Vathy is highlighted as the place to stroll, and the stop brings local flavor into the day. Kalymnos is associated here with its sponge traditions, local honey, and fresh orange juice. Those small details matter because they give you something to look for beyond a pretty shoreline.

You may also have time for souvenirs. The schedule is designed to leave room for shopping, though the short stop means you should keep your browsing focused. If you want a long café visit or a detailed historical walk, this is not that kind of excursion. If you want a taste of Kalymnos between swims and boat rides, it works well.

Lunch is served on board. The meal has been praised as surprisingly good, which is welcome on a day when you are active and exposed to sun and wind. One free beverage is included, while extra drinks can be purchased from the bar.

The vegetarian and vegan provision needs a careful note. The experience offers those options, but the meal may be handled by removing the meat and adding more salad, with bread on the side. If you do not eat meat, bring a clear understanding of what is offered and consider carrying an extra snack. This is the weakest part of the food arrangement.

Platy: the clearest invitation to swim

Platy is the first major swimming stop, with about an hour in the water. After the boat time and the Kalymnos visit, this is where the day shifts fully into holiday mode.

The water is described as exceptionally clear, and you have enough time to swim and snorkel rather than making a rushed five-minute stop. Bring swimwear and beachwear, and keep your towel and sunscreen close at hand. The boat is your base, so the experience is more about entering the sea from the yacht and enjoying the stop than setting up on a long sandy beach.

Platy can be busy when several boats arrive at once. That is worth knowing before you go. The sea may be beautiful, but the feeling can be less peaceful if many boats stop in the same place.

Still, an hour is a useful amount of time. You can swim, float, take photos from the boat, and dry off before the next cruise. I like this balance. The itinerary does not force you to choose between sightseeing and swimming, since each gets its own proper block of time.

Pserimos, the quieter final island stop

Pserimos offers another change of pace. The scheduled stop is listed as about 45 minutes, with time for a visit, sightseeing, and swimming. The source schedule also displays 45 hours, which cannot fit within a seven-hour outing, so you should treat the stop as approximately 45 minutes.

Compared with Platy, Pserimos is presented as a small-island visit with a port and scenic views as well as water time. You can get off, look around, and take in the compact setting before returning to the yacht.

This stop works well late in the day because it gives you a final chance to swim without asking you to spend the whole afternoon on the beach. The schedule includes an 80-minute sightseeing cruise on the return, so the ride back is part of the experience rather than dead time.

You should keep your expectations realistic here, too. Pserimos is a short stop, not a full island exploration. The value comes from seeing another corner of the Dodecanese and adding a third setting to the day.

What the return cruise feels like

The final sailing gives you time to relax after the stops. You may want a shaded seat, a drink from the bar, or a place on the sundeck to watch the islands recede.

The long stretches between stops are part of the price and the pleasure, but they are also the main commitment. If you want constant activity, seven hours on a yacht may feel slow. I see the longer crossings as useful downtime, especially for couples and families who want a simple day with no decisions beyond where to sit and when to swim.

The boat’s condition also matters on a day this long. It has been described as clean and well maintained, and the crew’s helpful manner adds to the comfort. That does not remove the effects of rough weather, but it means the basic setting is organized and cared for.

Is $35 a good value?

Yes, for most people, $35 is a strong price for this route. You receive:

• The full boat trip
• Stops at Kalymnos, Platy, and Pserimos
• Dolphin watching time
• Lunch
• One free beverage
• Swimming time at two islands
• A multilingual crew

You will pay extra for other drinks, so carry cash. The bar is convenient, but the final cost will rise if you buy several beverages during seven hours in the sun.

The low price also means you should think about what kind of meal and service you expect. This is a shared boat outing, not a private yacht charter or a tailored food tour. You get a broad taste of the islands, a comfortable boat, and a full schedule at a modest cost.

The overall rating is 4.2 out of 5 from 17 ratings. That fits the experience as presented: strong marks for the yacht, crew, scenic stops, swimming time, and value, with concerns focused on rough seas, crowding at one stop, and the weak meat-free meal.

Who will enjoy this Kos day cruise?

I would recommend it to you if you want to see more than one island without arranging separate ferries. It suits couples, families, and mixed-age groups who like a blend of scenery, short walks, food, and swimming.

It is also a good match if you want a sociable day on a larger wooden boat. The cushioned decks and shaded area make it more comfortable than a basic excursion boat, while the bar and included lunch keep the day simple.

You may want another option if you dislike open-water crossings, get cold or seasick in rough conditions, or need a carefully planned vegan meal. The boat can be wet in strong wind, and the island visits are brief. Anyone seeking quiet beaches with very few other boats may also find Platy too crowded at times.

The age restriction is simple: the activity is not suitable for people over 95. No other restriction is provided, but swimming ability and comfort around water are practical considerations for anyone joining a day built around sea stops.

What to bring for a more comfortable day

Pack light, but do not leave out the basics. You should bring:

• Sun hat
• Sunscreen
• Swimwear
• Beachwear
• Cash for extra drinks and souvenirs
• A light layer for wind and spray
• An extra snack if you need a substantial vegetarian or vegan meal

Use sunscreen more than once. The sea breeze can make the sun feel less intense than it is, especially on the upper deck.

Keep your phone and camera protected from spray. The boat is comfortable, but strong waves can send water across exposed areas. If you are choosing a seat, look for a position that lets you move easily between sun and shade.

Should you book this three-island cruise?

Book it if your ideal Kos day includes three island settings, clear swimming water, lunch, and an easy price. The route gives you more variety than a single-beach boat trip, and the yacht, friendly crew, and generous swimming stops make the day feel worthwhile.

I would book with two cautions in mind. Check the weather forecast, since rough water can turn the crossings into a wet and chilly ride. If you are vegetarian or vegan, ask exactly what the meal contains before committing, or plan to supplement it with your own food.

For $35, this is a practical way to sample Kalymnos, Platy, and Pserimos in one day. It will not give you a deep visit to any one island, but it gives you a pleasant sweep of the Dodecanese, with enough time in the water to make the boat ride feel like a holiday rather than a transfer.

FAQ

How long is the boat trip?

The experience lasts seven hours, including the island stops, dolphin watching, lunch, swimming, and return cruise to the Santa Maria and Captain Hook boats.

Where does the tour start?

Meet the crew at the Santa Maria and Captain Hook wooden boats.

Which islands does the boat visit?

The route includes Kalymnos, Platy Island, and Pserimos Island.

Is lunch included?

Yes. Lunch is included in the price, along with one free beverage.

Are vegetarian or vegan meals available?

Vegetarian and vegan options are available, but the meal may consist mainly of salad and bread with the meat removed. If you need a substantial meat-free meal, bring an extra snack or confirm the details in advance.

Are drinks included?

One beverage is included. Additional drinks and beverages can be bought on the boat for an extra charge.

What languages does the crew speak?

The host or greeter can speak English, German, Greek, Italian, Dutch, and French.

Can I cancel the booking?

You can cancel up to 24 hours in advance for a full refund. You can also reserve now and pay later.