Mljet National Park and 3 Island Boat Tour from Dubrovnik

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Free cancellationTravelers' pick

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Duration10h

GroupUp to 12

LanguagesEN · HR

Mobile ticketAccepted

Swim through Odysseus Cave and into the Blue Cave on the same day.

A full-day boat tour from Dubrovnik visits Mljet Island, the Elafiti Islands and three swimming stops, with a live guide, snorkelling equipment and water included. The tour runs 10 hours and keeps groups small so the pace adapts to what you want to do at each stop. National Park entry is an optional add-on at checkout. The boat departs from Dubrovnik and returns there by evening.

10h

Step-by-step itinerary

Explore Mljet and Elafiti Islands

Arrive at Lopud Island
Visit Benedictine monastery
Pause at Moon Beach lagoon
Swim through Odysseus Cave
Explore Mljet National Park
Relax at Priježba Beach
Swim in Koločep's Blue Cave
Return to Dubrovnik

The Experience

The boat leaves Dubrovnik early enough to reach Lopud in the Elafiti Islands before the crowds arrive. You walk the palm-lined promenade and visit the Benedictine monastery overlooking the Adriatic, then the boat heads toward Mljet. The first swim stop is Moon Beach, a crescent-shaped lagoon tucked beneath limestone cliffs where the water stays turquoise and shallow. From there, the route takes you to Odysseus Cave, where you swim through a narrow sea tunnel into a chamber of crystal-clear water framed by ancient rock—the view back out toward the open sea is the kind of moment people describe for years afterward.

Mljet National Park gets over three hours of your day. The crew walks you to the entrance and explains the walking routes, cycling paths, kayaking spots and swimming areas so you can spend the time exactly as you want—exploring the dense Mediterranean forest and two saltwater lakes, or simply sitting by the water. There's no schedule pushing you from one viewpoint to the next. After the park, Priježba Beach is the place to swim and rest before the final stop at the Blue Cave on Koločep, where sunlight filters through the sea opening and turns the water luminous blue. You swim inside or float in the entrance before the boat heads back to Dubrovnik.

The tour includes a skipper and live guide in English or Croatian, bottled water, snorkelling equipment, wind jackets and all safety gear. The 10-hour day means you're on the water from early morning through late afternoon. Small groups are the reason the pace doesn't feel rushed—the guide has time to answer questions and linger at stops instead of moving everyone through on a clock. If weather cancels the tour, you get offered another date or a full refund.

What’s included

Bottled water.
skipper and live guide in English or Croatian.
snorkelling equipment.
wind jackets and safety gear.
fuel and boat operation.

Good to know

Moderate physical levelPublic transport nearbyNot for pregnant travelersNot for heart conditionsNot for back problems

Operated by Sea Breeze

Is this one for you?Small groups and a guide who has time to linger mean you're not moving through stops on a schedule—you swim where you want, explore Mljet's lakes at your own pace and actually remember the caves instead of photographing them from a crowded boat.