Reviewed · CRUISES & BOAT TOURS
From the Port of Kos: Full Day Boat Cruise to 3 Islands
This full-day cruise is interesting because it turns a day on the water into a mini island-hopping rhythm: you sail, you swim in clear coves, and you get just enough time on land to feel the islands. I like the three-island mix (Kalymnos, Plati, Pserimos) because it avoids the all-day-at-one-place feeling. I also like that the onboard lunch is a real Greek-style meal with a vegetarian option that is more than an afterthought.
One consideration: the boat can feel crowded at times, and when the sea is choppy you may get more splashes than you planned for, especially if you are near the front.
Key Things I’d Focus On Before You Go

- Vathi on Kalymnos for a real walk plus big fjord, gulfs, and cave views from the water
- Fish farm waters as the cue to scan for wild dolphins jumping close to the boat
- Plati islet swim stop in turquoise water with time to hop in around the boat
- Greek buffet lunch on board including pork or chicken souvlaki plus a vegetarian version (beans and dolmades)
- Happy hour cocktails sold on board, with reports of low prices during the drink window
Where the Odyssey Boat Cruise Starts in Kos Harbor
This trip runs from the Port of Kos, and the meeting point is part of the ease. Look for the blue boat named Odyssey in the harbor, opposite the Port Police.
You should aim to be there by 9:30 so you can check your ticket and get settled before departure. This matters because the day is built around sailing time plus multiple swim stops, and you do not want to be late while everyone else is already boarding.
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Kalymnos and Vathi Views: The Fjord Feel You Can Actually Photograph

The cruise heads first toward Kalymnos, stopping in Vathi, a village with those dramatic, water-shaped views that make you stop and look twice. From the water, you can see the natural fjord-style setting and rugged cliffs and coves around the area. It is the kind of coastline where your phone camera gets a workout.
You get about an hour to explore Vathi at your own pace. This is not enough time to do everything, but it is perfect for the good stuff: walking a few streets, taking photos, and getting a taste of the local vibe. If you like scenery plus small-town wandering, this is the best land window of the day.
What to consider here: Vathi time is short, so if you want a snack or a souvenir, do it early in your walk. I also suggest wearing shoes you are comfortable with on uneven ground, since village streets are often not flat like a promenade.
Sailing Time: Why the In-Between Hours Are Part of the Value

Between islands, you spend time cruising on the boat, including a sailing segment of about 1 hour before Kalymnos and another about 45 minutes as you work your way toward the swim stops. That might sound like a lot of “boat time,” but in practice it is how the day stays relaxed and keeps the itinerary flowing.
You also get a view of the coast you would miss if you tried to jump between islands by yourself. The highlights are not just the stops, it is the travel between them, especially as the coastline changes from sheltered coves to more open stretches.
One small note: onboard there is live English guidance, and you can expect soft music as the day moves along. If you want a very quiet, library-style cruise, you may find it a little more lively than that, but the vibe described is generally friendly and not overly chaotic.
Lunch on Board: Greek Souvlaki Plus a Vegetarian Plate That Works
Lunch is included, and it is one of the biggest reasons this cruise feels good value. You eat on board after the first island time, and the buffet includes pork or chicken souvlaki, plus salad, tzatziki, and bread.
The vegetarian option is clearly defined: beans and dolmades instead of meat. If you are vegetarian, I love that it is not just “something on the side.” A vegan note does come up in the conversation from some passengers, so if you are strictly plant-based, plan to double-check what you are getting based on what is served on your date.
Portion size and timing matter on a boat day, and this lunch is positioned so you are not starving while you wait for the next swim stop. It also gives you a comfortable reset after walking in the sun.
Practical tip: eat soon after the buffet opens, then use the post-lunch minutes to top up sunscreen and get ready for the next swim.
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Fish Farms and Dolphin Watching: The Best Kind of Surprise

After lunch, the cruise heads past fish farms, and that is when you should start scanning the water. The idea is simple and clever: fish farms attract marine life, and the crew looks out as well. You may spot wild dolphins jumping out of the water, and multiple people on board call this the big payoff of the day.
This is also where expectations should be realistic. Dolphin sightings are not guaranteed on any water-based trip. But the cruise gives you repeated chances to look, and the route is built around that possibility.
If you want to improve your odds, head to a good viewing spot early and keep your eyes up, not only at the surface. Dolphins can show up suddenly, then vanish just as fast.
Plati Islet Swim Stop: Turquoise Water Time (With a Real Chance to Relax)
Plati is the island that turns the day from scenery into full-on swimming mode. You arrive at Plati islet and get a dedicated swim period where you can jump in and swim around the boat. The water here is described as bright and clear, the kind that makes you feel like you are floating in a photo.
In the schedule, this swim stop sits after another sailing segment of around 20 minutes. So you are not waiting around forever. You go from boat to water fairly quickly, and that keeps the energy of the day upbeat.
One practical consideration: on choppy days, the boat motion is real, and getting in and out can feel more awkward. If you are new to open-water swimming, go slow and hold onto the nearest ladder or handhold. Bring goggles if you like, but do not expect full reef snorkeling unless the crew provides that kind of guidance, since this is primarily a swim stop around the boat.
Pserimos Island for Your Own Pace, Plus the Day’s Final Views
Pserimos is your last island, and you get about an hour to explore at your own pace before returning toward Kos. The day’s structure keeps this hour feeling like a bonus rather than a rush.
If you like “walk and wind down,” this is the right final stop. You are coming in after lunch and swim time, so your body is ready for a relaxed wander. You can also take advantage of the last stretch of daylight views from the water as you circle back.
A helpful expectation: sometimes docking conditions change based on wind and sea state. When that happens, the crew may adjust so you still get extra swimming time. In other words, you should treat the swim plan as flexible within the overall structure.
Price and Value: What $35 Buys You on a Full-Day Cruise

At $35 per person, this cruise is positioned as an affordable way to do a full day around Kos’s island neighbors. The real value is not only the boat ride. It is the combo: multiple stops, lunch included, several swimming opportunities, and the on-the-water dolphin search near fish farms.
Most cheaper boat outings either cut the food, reduce swim time, or keep you stuck at one place. Here you get a clear “day at sea” format that is hard to beat if your goal is variety without heavy planning.
Drinks are not included, but cocktails are sold on board, including a happy hour window with refreshing options at low prices. Since drinks add up fast when you buy them separately elsewhere, having an on-board option you can choose helps control your total cost.
What You Should Bring to Have a Comfortable Day at Sea

This is a swimming-focused cruise, so pack like it is a beach day with extra steps. Bring:
- Sun hat
- Swimwear
- Towel (towels are not included)
- Sunscreen
Also, consider bringing a small dry bag or sealable pouch for your phone and wallet. There is splashing sometimes, and if you end up wet anyway, at least your valuables stay dry.
Who This Cruise Fits Best
I think this trip suits you if you want:
- A relaxing full-day plan without renting a car or arranging ferries
- A mix of scenery plus swimming
- A straightforward meal included in the price, with a vegetarian alternative
It is also a good pick for couples, families, and first-time visitors who want to see more than just the Kos town area.
One group that may feel less comfortable: people with mobility challenges. The experience is listed as wheelchair accessible, but it also notes it is not suitable for people with mobility impairments. If that applies to you, I would contact the operator before booking so you can understand how boarding, movement, and swim stops work on your exact date.
Final Call: Should You Book the Odyssey 3-Island Cruise?
I’d book this if your goal is a simple, good-value 3-island day with real swimming time and a Greek lunch included. The itinerary has a nice flow, you get land time in Vathi, then the day shifts into sea time at Plati and Pserimos.
Skip it or at least think twice if you are very sensitive to crowds or rough water. And if dolphins are your top dream, keep your expectations flexible, because the cruise sets you up for the chance but cannot control sightings.
If you want an easy way to enjoy Kos beyond the beach chairs, this one is a strong, practical choice.
FAQ
What islands does the cruise visit?
The cruise visits Kalymnos (Vathi), Plati (swim stop), and Pserimos (swim stop and about an hour to explore).
How long is the experience, and when do I need to board?
The duration is 450 minutes. You should come on board by 9:30 to check your ticket.
Is lunch included, and is there a vegetarian option?
Yes, lunch is included. The meat option includes pork or chicken souvlaki with salad, tzatziki, and bread. There is also a vegetarian option with beans and dolmades.
Are drinks included?
Drinks are not included. Cocktails are available to purchase, including happy hour with refreshing cocktails at low prices.
Do I need to bring a towel?
Yes. Towels are not included, so bring your own along with swimwear.
Is the cruise wheelchair accessible?
The activity is listed as wheelchair accessible, but it is also noted as not suitable for people with mobility impairments. If mobility is a concern, check directly with the operator before booking.
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