Kos’s 10 Best Cruises And Boat Tours

Kos is a prime spot for exploring by water. The island’s location in the Dodecanese means there’s no shortage of cruise options that take you to nearby islands, offer swimming stops, and even dolphin sightings. We love the 3 Island Luxury Cruise with 4 Swimming Stops with Captain Morgan for its modern vessel and ample space, especially if you want a more upscale experience. Meanwhile, the Full Day Boat Cruise to 3 Islands offers a more relaxed, budget-friendly day on the water with snorkeling and local villages. For families, the Pserimos Island Small Group Family Day Sailboat Cruise is perfect, combining fun watersports with a convivial atmosphere. Whatever your style—luxury, adventure, or family time—Kos’s boat tours deliver authentic experiences on the Aegean Sea.

Quick Overview

Our list features 10 top-rated cruises and boat tours in Kos, each offering a different way to enjoy the sea and islands nearby. From luxury yachts to glass-bottom boats, there’s something for every traveler, whether you want dolphin-watching, snorkeling, local food, or a laid-back day of swimming. Every tour includes details on itinerary highlights, pricing, and what makes each one special. Read on for the full scoop.

1. 3 Island Luxury Cruise with 4 Swimming Stops with Captain Morgan

At number 1 we have the 3 Island Luxury Cruise with Captain Morgan, a standout for its spacious modern vessel, built in Greece in 2024. With a capacity for 300 passengers, the ship boasts three decks, including sundecks with plush cushions and shaded areas perfect for relaxing as you take in the views. The boat features two well-stocked bar areas on different decks, making it easy to enjoy a drink while cruising. The itinerary includes five stops, each offering opportunities for swimming, exploring local towns, and dolphin watching off Kalymnos.

The tour kicks off with Pserimos’s golden beaches, then visits the sponge-diving town of Vathi, with a chance to sample local honey and orange juice. Next, a dolphin safari brings the magic of spotting these playful creatures. The surprise stop on Pserimos offers a quiet spot for swimming or relaxing. Guests praise the friendly crew, delicious onboard lunch, and the beautiful islands. One reviewer summed it up: “Fantastic excursion with a welcoming crew and beautiful islands. The lunch was a bonus!” This cruise appeals to those wanting comfort, plenty of swimming, and a lively atmosphere.

Bottom line: A great choice if you want a large, comfortable boat with plenty of swimming and dolphin opportunities.

2. Full Day Boat Cruise to 3 Islands with optional pickup

Number 2 on our list is the Full Day Boat Cruise exploring three islands. This 8-hour journey provides a classic Greek island experience with snorkeling gear included, and the option for pickup adds convenience. The tour visits Pserimos, Vathi on Kalymnos, and Plati, with plenty of time for swimming and exploring. Guests love the casual, friendly vibe and the chance to see dolphins if you’re lucky.

The itinerary includes a visit to Pserimos’s quiet beaches, a walk through Vathi’s small town with its local sweets and orange juices, and a swim stop at Plati’s crystal waters. The reviews highlight the warm staff and the value—the trip is praised as a great way to see several islands without rushing. One reviewer notes, “We saw dolphins, danced on the boat, and had a fantastic day. Truly a memorable experience.” The trip is best for those wanting an authentic, laid-back day on the water, with plenty of chances to swim and snorkel.

Bottom line: Perfect for travelers seeking a leisurely, full-day island adventure with a friendly crew and flexible stops.

3. Kos: 3-Island Cruise with Greek BBQ Lunch and Swimming

Third place goes to the Kos: 3-Island Cruise with Greek BBQ Lunch, a 7.5-hour experience that combines sightseeing, swimming, and authentic Greek flavors. The boat visits Platy, Kalymnos, and Pserimos, with the chance to swim in clear waters and spot dolphins along the way. A highlight is the Greek BBQ onboard, which guests often praise as tasty and plentiful.

This tour emphasizes culture and local flavor, with stops at Kalymnos to purchase sponges and taste local honey. The itinerary includes cliff jumping on Platy and relaxing on Pserimos’s beaches. Reviewers note the friendly staff and the delicious lunch. One quote: “The trip was well organized, and the lunch was delicious. Seeing dolphins was an unexpected treat.” It suits travelers who want a mix of sightseeing, swimming, and authentic regional cuisine.

Bottom line: A balanced option for those who want to see multiple islands and enjoy a traditional Greek meal on board.

4. From Kos: A full day cruise in the newest luxury vessel

Number 4, the full-day cruise on a luxury vessel, stands out for its brand new, sleek boat and intimate atmosphere. This 7-hour trip features four stops, including Platy, Kalymnos, and Pserimos, plus a surprise hidden stop. The vessel offers comfortable seating, snorkeling opportunities, and dolphin watching. Guests enjoy the peaceful cruising and the chance to explore the islands at their own pace.

Reviews mention the entertaining crew and the beautiful scenery. One reviewer wrote, “The crew made the day special, and the boat was spotless. The swim stops were perfect,” highlighting the high standards of comfort. The tour is ideal for travelers who want a more upscale experience without sacrificing fun or authenticity.

Bottom line: A top pick for travelers valuing comfort, quality, and a less crowded environment.

5. Full-Day 3 Island Cruise Tour in Kos Island

This full-day cruise is perfect for those wanting to maximize island visits. Over approximately 7.5 hours, you’ll see Platy, Kalymnos, and Pserimos, with dolphin sightings en route. The tour includes lunch, swimming, and photo stops. Reviewers highlight the excellent value and the friendly crew. One comment: “We loved the multiple swim stops and the delicious barbecue onboard. Dolphins even showed up!”

The boat allows disembarking at each island for exploring, making it ideal for active travelers. It suits those who want to see a lot in one day and enjoy a relaxed, family-friendly atmosphere with good food.

Bottom line: It offers a comprehensive, flexible day trip for island-hoppers.

6. Dory’s Glass Bottom Boat Adventure in Pserimos and Pserimos Beach

Number 6, Dory’s Glass Bottom Boat Adventure, offers a unique perspective on the underwater world of Pserimos. With a glass-bottomed vessel, you can watch fish and shipwrecks without getting wet. The tour includes a visit to Pserimos’s beaches and the shipwreck, with options to swim nearby.

Reviewers appreciate the clear views and friendly crew. One wrote, “Loved it, especially seeing the shipwreck and the colorful fish below.” It’s perfect for travelers wanting a shorter but visually impressive experience and those with limited time but still eager to see marine life.

Bottom line: A fun, family-friendly option to explore the local sea life without diving gear.

7. The Santa Maria Full-Day Island Cruise in Aegean Sea

Number 7 is the Santa Maria Full-Day Cruise, a 7.5-hour trip emphasizing the classic Greek island experience. It visits Platy, Kalymnos, and Pserimos, with a barbecue lunch included and chances to spot dolphins along the way. The boat offers music and dancing, making it lively and fun.

Guests mention the well-managed itinerary and the friendly crew. One reviewer wrote, “It was a relaxing day with opportunities to swim, dance, and enjoy beautiful scenery.” It’s best suited for travelers who want a combination of sightseeing and lively social atmosphere.

Bottom line: Good for those who want a fun, active day with plenty of eating and music.

8. Kos: 3-Island Cruise with Lunch and Hotel Transfer

Number 8 is the 3-Island Cruise with lunch and hotel transfer. Operating on a luxurious wooden yacht, this 8.5-hour trip includes hotel pickup, making logistics effortless. The tour visits Platy, Kalymnos, and Pserimos, with stops for swimming, exploring, and dolphin watching.

Reviews praise the comfortable boat, great crew, and delicious onboard lunch. One guest said, “The transfer was smooth, and the boat was beautiful. The stops were well-paced and relaxing.” It suits travelers who want an all-inclusive, stress-free day with the comfort of hotel pickup.

Bottom line: An excellent choice for travelers valuing convenience and upscale comfort.

9. Kos 3 Island Cruise with Hotel Pick Up and Drop Off

Number 9 offers a comprehensive day trip with hotel pick-up. Covering approximately 7 hours, it takes you to Platy, Kalymnos, and Pserimos, with swimming, sightseeing, and local dining. The itinerary is flexible, with stops to explore beaches and villages.

Guests comment on the friendly staff and beautiful scenery. One review states, “The logistics were seamless, and we loved exploring each island at a relaxed pace.” It’s best suited for travelers who want a full service experience with the convenience of hotel transfers.

Bottom line: Ideal for those who prefer hassle-free planning and a full day of island adventures.

10. Kos: Pserimos Island Small Group Family Day Sailboat Cruise

Finally, the Family Day Sailboat Cruise is tailored for families seeking a kid-friendly experience. The 20-meter sailboat provides a comfortable, fully-cushioned environment, with opportunities to snorkel and swim in secluded bays. The small group setting ensures personalized attention.

Reviews highlight the family-friendly atmosphere and fun watersports. One family shared, “Our kids made friends, and we loved relaxing on the boat while exploring the clear waters.” It’s perfect for parents wanting a safe, all-inclusive day on the water with younger children.

Bottom line: An excellent, relaxed option for families looking for safe fun and quality time.

How to Choose the Right Cruise in Kos

Choosing the best boat tour depends on your priorities. If luxury and comfort top your list, the 3 Island Luxury Cruise with Captain Morgan is ideal. For a more budget-friendly experience with plenty of swimming and dolphin sightings, the Full Day Boat Cruise offers great value. Families should consider the Pserimos Island Small Group Family Day Sailboat Cruise, which prioritizes safety, comfort, and fun for kids.

If you want a hassle-free, all-inclusive day with hotel transfers, the Kos: 3-Island Cruise with Lunch and Hotel Transfer is worth the extra convenience. For those wanting a shorter but equally engaging experience, Dory’s Glass Bottom Boat is perfect for marine lovers.

Book these tours early, especially in peak summer months, as they tend to fill up fast. Consider your fitness level, interest in local culture, and whether you value luxury amenities or family-friendly options.

Final Thoughts

Kos offers a wide variety of boat tours that cater to different tastes and needs. From luxury cruises with dolphin watching to family-friendly sailboats, there’s something for all. For a relaxing day on the water, the 3 Island Luxury Cruise is a stand-out, while the full-day island hopping offers a more flexible, casual experience.

If you’re traveling with family or seeking a stress-free adventure, consider the small group sailboat. For those who love a lively atmosphere with music and dancing, the Santa Maria cruise can’t be beaten.

No matter which tour you pick, booking early and planning around the weather will help you make the most of your time on the beautiful waters of Kos.