Three islands make one great day.

This Kos boat trip feels like a pick-and-go mix of sightseeing and swim time, with the boat (Odyssey) doing most of the work for you. I especially like that you’re not just staring at the water—you get real chances to be in it, plus a proper lunch onboard.

What I like most is the combination of Kalymnos village time and the relaxed pace of island hopping. You get an hour in Vathi (Kalymnos) with views of the natural fjord and caves, then stops where the sea turns into your main activity, including a dolphin hunt near the fish farms.

One drawback to plan for: the boat can feel crowded, and if the sea is choppy you’ll want to think about where you sit so you don’t get soaked.

Key points to know before you go

• Odyssey Boat meets you at Kos: look for the blue Odyssey by the harbour, opposite the Port Police
• Three islands, not just one long swim: Vathi on Kalymnos plus Plati and Pserimos
• Swim stops are built in: jumping off for turquoise water time is the main event
• Dolphins are a real possibility: the route includes fish farms where you may spot wild dolphins
• Lunch is included and has a vegetarian option: souvlaki-style meal plus beans and dolmades
• Happy hour cocktails: drinks cost extra, but people report prices staying reasonable during happy hour

Odyssey Boat in Kos: where to find the blue ship

The whole day runs off a simple start: you meet at Odyssey Boat Kos. Go early enough to check in comfortably, and make sure you’re looking for the blue boat named Odyssey at the harbour of Kos, opposite from the Port Police.

You’ll also want your basic “on-water” kit ready. Bring a sun hat, swimwear, sunscreen, and your towel, because this is a day where you’ll be in and out of the sea more than once.

The 7 to 7.5-hour rhythm that keeps it from feeling rushed

The tour runs 450 minutes (about 7.5 hours). In practice, it tends to feel like a smooth day because it’s broken into travel + focused island time + multiple sea breaks.

A typical flow looks like this: one stretch of sailing to Kalymnos, an hour in Vathi, another hop over by boat, then swimming at Plati, and finally arrival at Pserimos for your last exploration hour before heading back to Kos. That pacing matters because it gives you time to enjoy each place instead of treating the islands like brief photo stops.

Kalymnos and Vathi: fjords, caves, and one hour that’s just enough

Kalymnos is the sightseeing anchor of the day. The first stop is Vathi, a village area known for dramatic views—think natural fjord-like scenery, rugged cliffs, caves, and coves that make for excellent photos even from shore.

You get about an hour of free time here. I like that you’re not forced into a rigid walk—this is the kind of stop where you can wander at your own speed, pop into small spots for a local taste, and simply soak up the view.

If you love places that feel lived-in rather than staged for cruise crowds, Vathi fits the bill. You’ll also get that “islands-with-real-topography” feeling, where the water and the rock shapes the whole experience.

Plati islet: the turquoise swim stop and the onboard happy hour

After Kalymnos, you head toward Plati islet, and this is where the day tilts even more toward the sea. Expect a swim stop that’s basically built around jumping in and staying close to the boat while you float, swim, and cool off.

This is also where the mood changes a bit. There’s happy hour on board, and cocktails are available for purchase at low prices, so you can dry off, sip something cold, and watch the water activity around you.

One practical note: docking and timing can shift if conditions aren’t cooperative. If Plati docking doesn’t work smoothly due to wind, you may get adjusted with extra time for swimming later (including around Pserimos). Either way, the goal stays the same: water time stays on the menu.

Pserimos island hour: explore on your own, then sail back to Kos

The last island stop is Pserimos. You’ll get about an hour to explore at your own pace, which is a nice amount of time for a stroll, a quick look around, and then deciding how long you want to linger near the waterfront.

I like that the day doesn’t try to cram in more than one big “must-do” shore experience. Pserimos gives you a calmer wind-down before the ride back to Kos, so you’re not exhausted by the time you return.

Also, consider bringing some cash for the last stop area. Card acceptance isn’t guaranteed in every little spot, so a small amount of euros helps you stay flexible if you want snacks or souvenirs at the end of the day.

Dolphins near fish farms: the sightseeing you can’t script

The dolphin part isn’t just a marketing line—it’s woven into the route. After lunch, the cruise goes by nearby fish farms, and the plan is to look out for wild dolphins jumping near the waterline.

Here’s the honest way to think about it: you can’t control whether dolphins show up. But the fact that the boat actively looks in the right areas is a big plus for your odds, especially if you’re visiting during a season when these animals are active in the region.

If you do spot them, it changes the whole day from a nice cruise into something you’ll remember for a long time.

The onboard Greek buffet: what’s included (and what to watch for)

Lunch is included, and it’s not just a token snack. You’ll have a Greek buffet onboard, with a meal that includes souvlaki-style pork or chicken, salad, tzatziki, and bread.

Vegetarian options are clearly built into the plan. Instead of meat, the vegetarian meal uses beans and dolmades, and it keeps you from feeling like you’re eating a fallback plate.

If you’re vegan, plan to be flexible with the details. One common point is tzatziki, which may not fit a strict vegan diet. The good news is that staff can usually help you sort it out, but you should still be ready to double-check.

Overall, I like the way lunch fits the day: you eat onboard right after the first island, so you don’t lose shore time. It keeps the itinerary smooth and reduces the “find food with a schedule” stress.

Crew, music, and value: why this costs $35 and feels like more

At $35 per person, the big question is whether this is a budget-only boat trip or whether you get real value. From what the day offers, it lands in the “good deal” category because so much is bundled: cruise to three islands, swim stops, and lunch with meat and vegetarian options.

The other big reason people rate this so highly is the crew energy. You’ll get friendly help onboard, and the captain and guide keep things moving with a sense of humor and regular check-ins.

Music is part of the mix too. It’s typically a soft soundtrack rather than a loud party setting, so it works if you want the day to feel social but not chaotic. If you’re sensitive to sound, just know there’s usually some music in the background while cruising between stops.

Drinks are extra. Water and cocktails are available for purchase, and happy hour pricing is a real perk. People report prices staying reasonable compared to the usual tourist-markup feeling, especially during happy hour.

Comfort, space, and sea conditions: the small details that matter

This is a boat day, so comfort comes down to two things: seating and sea conditions.

The boat can feel crowded, especially if you’re traveling with a lot of people or if everyone shows up ready to claim the best spots. If you hate tight seating, I’d treat this as an “adjust expectations” moment and aim to get on early.

Sea conditions matter, too. If the water is rough, getting wet is more likely—especially if you’re sitting where spray reaches. If you’re trying to stay dry, pick a spot that’s less exposed, and come prepared with a towel for quick changes.

If you get motion sickness easily, bring your own prevention plan. A lot of people prefer using their usual remedy rather than hoping they’ll feel fine.

Who should book this Kos 3-island cruise (and who should think twice)

I think this cruise works best for you if you want one straightforward day that mixes island wandering with swimming and a little wildlife luck. It’s also a good choice if you’d rather not manage buses or ferries—this boat route does the hopping for you.

It’s especially suitable for:

• Couples and friends who want a full day without overplanning
• People who love swimming and want multiple water breaks
• Anyone who wants dolphin spotting as a bonus activity near fish farms
• Vegetarians who want a real onboard option (beans and dolmades)

Think twice if:

• You have mobility concerns. The info mentions wheelchair accessibility, but it also says it’s not suitable for people with mobility impairments. If that applies to you, contact the operator and ask specifically how boarding and movement are handled on the day.
• You dislike crowds or tight seating.
• You want a quiet, no-music experience. There’s generally a playlist onboard.

Should you book this Odyssey 3-island cruise from Kos?

Yes, if your idea of a great day includes three things: time on Kalymnos (Vathi), swim stops where the water is the main event, and lunch onboard that’s included in the price. For $35, you’re basically paying for transportation, stops, swimming access, and a meal—then getting the dolphins as a very satisfying bonus.

I’d book it now if you’re flexible about the order of docking and weather. And if you’re picky about seating comfort, plan to arrive on time and bring your towel and sunscreen so you’re not spending the day scrambling for basics.

If you want one easy, high-value day trip out of Kos that feels fun without being over-the-top, the Odyssey cruise is a strong bet.

FAQ

What islands are included on the full-day cruise from Kos?

The cruise visits three islands: Kalymnos (Vathi), Plati islet, and Pserimos.

Is lunch included, and is there a vegetarian option?

Yes. Lunch is included onboard, with a buffet that includes souvlaki-style pork or chicken, salad, tzatziki, and bread. There is also a vegetarian option with beans and dolmades.

Do you get time to swim?

Yes. There are swim stops, including time at Plati islet where you can swim around the boat.

Are drinks included in the price?

No. Drinks are available to purchase onboard. There is also happy hour with cocktails at low prices.

How long is the tour?

The duration is 450 minutes, which is about 7.5 hours. Starting times vary by availability.

Where and when do I meet the boat?

Look for the blue boat named Odyssey at the harbour of Kos, opposite from the Port Police. Aim to be on the boat by 9:30 to check your ticket.