Boat Tour to Mljet National Park & 3 Islands

The big draw here is the range: in one long day from Dubrovnik, you can swim at Odysseus Cave, spend several hours among Mljet’s lakes and pine forests, and stop at small island ports and beaches. A fast RIB boat makes this route possible without piecing together ferry schedules.

I like two things in particular: the open-ended time at Mljet National Park, where you can choose bikes, walking, kayaking or a swim, and the small group, capped at 12 people. The crew also supplies bottled water, snorkel gear and wind jackets, useful on a day with a lot of time exposed to sun and sea spray.

The trade-off is the ride itself. This is a speedboat with straddle-style seating for much of the group, and it can bounce hard in choppy water. If you have back or hip trouble, or need reliable shade, contact Sea Breeze before booking.

At a glance

• A full day on the water: Plan on about 10 hours, with a 7:30 am start from Lapadska obala 4 in Dubrovnik.
• Mljet gets the most time: The three-hour stop allows room for a swim and one main activity, such as cycling or walking.
• Odysseus Cave is a swim stop: Bring water shoes and a towel; getting inside may require swimming underwater.
• The €25 park fee is extra: Bring cash for the entrance fee, food and drinks.
• The boat ride is part of the adventure: It is quick and fun for many, but the seating and bouncing can be uncomfortable.
• Weather can change the route: The crew may choose a different stop if conditions make the planned one unsuitable.

A fast boat, a long day, and several kinds of coast

This trip is best understood as a sampler, not a slow island stay. You leave Dubrovnik early, make several stops across the Elafiti Islands and Mljet, and return to the same meeting point after a full day. The boat covers distance quickly, leaving time for swimming and getting off the boat rather than spending the whole day in transit.

The group limit of 12 helps keep the outing more personal than a large excursion boat. Skippers named by the company and past participants include Marko, Ante, George, Suzie, Toni and Carlo. Their role matters: they handle the boat, share information about the stops and help with practical needs such as wind jackets and snorkel equipment.

Expect an active day, though not every stop demands exertion. You can walk, swim or relax on shore, but you will need to get on and off a boat, manage your own time at the park, and tolerate a long ride. The activity calls for moderate physical fitness and is not recommended for people over 65.

Lopud before the day gets busy

The first stop is Lopud, with about 40 minutes to explore. The appeal is its small-island feel and the chance to walk around before the day’s later swim stops. The route description points to tall palm trees and a view from a Benedictine church; one useful way to spend the short stop is along the waterfront and around the nearby historic buildings and garden.

Forty minutes is enough for a brief walk and a few photos, not a thorough visit. If you have a particular church, garden or café in mind, keep an eye on the clock. This is a quick introduction to Lopud rather than time to settle in for a long lunch.

A brief look at Blace Beach

The next listed stop is the Blace beach area near Saplunara on Mljet, scheduled for just five minutes. That is a short pause, more suited to hearing a little about the location and taking in the setting than to a proper beach visit. Save your expectations for longer swim stops.

The route can vary with conditions. One trip, for example, substituted Šipan for Koločep because the crew judged it a better choice for the weather. Treat the named stops as the planned route, not a guarantee that every cave or island will be accessible on the day.

Swimming into Odysseus Cave

Odysseus Cave is one of the trip’s signature stops, with about 40 minutes there. The cave sits on Mljet’s southern side, and the visit is centered on swimming and snorkeling in clear water. There is also a cliffside area for those who want a higher view, though the stop is short if you hope to swim, explore and hike.

Take the crew’s snorkel gear if you need it, but bring water shoes. The rocks around the cave can be sharp, and the entrance may require you to go underwater to get inside. A towel and waterproof phone case are also sensible; keep your phone secure around the water.

The cave is weather-dependent, and swimming there is not a passive sightseeing stop. You need to be comfortable in the water and able to manage your own entry and exit. Jellyfish may be present, so pay attention to the conditions and any guidance from the crew.

Three hours among Mljet’s two lakes

Mljet National Park is the heart of the day, with around three hours in Pomena. The park protects pine forest and two saltwater lakes, Malo Jezero (Little Lake) and Veliko Jezero (Big Lake). Flat paths around the lakes make walking and cycling appealing, while swimming gives you a chance to trade the boat’s motion for calm water.

You have choices, but three hours is not enough to do everything at an unhurried pace. You might rent a bike or e-bike to cover more of the Big Lake, walk a section of the path, or take time for a swim. Kayaks are another listed option. A small island with a church sits in the lake, reachable by ferry, but fitting that in alongside a full bike loop may be difficult.

I would decide what matters most before arriving. If you want to cycle, ask about rental options and head out promptly. If swimming is the priority, pack your towel where you can reach it and leave time to dry off before boarding. The shore can be rocky, so water shoes help here too.

The €25 per-person National Park entrance fee is not included in the tour price. Plan for it as an extra, and bring cash for park expenses and any food or drinks you buy. The park stop is generous compared with the other scheduled visits, but it is still a taste of Mljet, not a full day to explore every path.

Šipan’s harbor and the final cave stop

Šipanska Luka is scheduled for about two hours. It offers a slower change of pace after the park: time for a beach break, a drink at a bar, a look at historic sites or a meal. This is one of the better windows for a proper rest on land, so use it according to your energy and appetite.

The final planned stop is Koločep, where the blue cave is the main attraction. The described visit includes swimming in blue water beneath a dark ceiling, with snorkeling and cliff jumping also possible in the area. No specific duration is provided for this stop, so do not plan around a long stay.

Cave access depends on sea and weather conditions. If the crew skips it, the day can still include other island stops, but the blue cave is a major reason many people choose this tour. If seeing it is essential, understand that conditions at sea may decide the matter.

What the boat feels like over ten hours

The boat is a RIB-style speedboat. It moves fast between stops, which is how the tour fits so many places into one day, and the ride itself is a major part of the fun for people who enjoy speed and open water. Music is often played onboard, and the crew provides wind jackets for chilly stretches.

There is a comfort cost. Most seats are arranged as long, straddled benches rather than individual seats, while seats at the very back may feel more like conventional boat seats. On a bumpy day, the boat can hit waves hard. Anyone with a sensitive back, hips or other physical concern should ask Sea Breeze about seating and conditions before booking.

Shade deserves a question too. A sun canopy has been fitted, but one trip had a canopy hardware problem, and another account noted little protection from the sun. Do not assume you will have shade all day. Pack sunscreen, a hat and a light layer, and check with the operator if shade is important to you.

Safety equipment, including life jackets, is supplied, and the price includes fuel. That is reassuring, but no equipment makes a rough ride comfortable for everyone. If the sea is unsettled, the experience may be less pleasant even when the crew is managing the boat safely.

The real cost, and what to bring

The listed price is $163.33 per person, with the €25 park fee added separately. For that, you get a long day of boat transport, a small group, several stops, water, snorkel gear, wind jackets and safety equipment. The value is strongest if you want to see several islands and swim in places that would be difficult to reach independently in one day.

Food is not listed as included. You may be able to buy something at a stop, but that uses time you could spend walking or swimming. Bring a snack, or consider packing lunch if you want to make the most of the park. Cash is useful for the entrance fee, cafés, bars and other purchases.

Pack a towel, water shoes, sunscreen, a swimsuit and walking shoes. A light jacket is useful because it can feel cold when the boat is moving, even on a warm day. Bottled water is provided, but carrying extra water for time ashore may suit you. A small bag is practical; keep valuables protected from spray and swimming.

The tour starts at 7:30 am at Lapadska obala 4 and ends back at the same meeting point. It is typically booked well in advance, around 44 days on average, so do not leave it to the last minute if your dates are fixed. It requires good weather; if poor conditions cause cancellation, you are offered another date or a full refund. You can cancel for a full refund up to 24 hours before departure.

Who should book this boat tour?

Book it if you want a varied, active day and are happy to trade a slow island visit for a wide-ranging route. Families with older children may find the mix of caves, swimming, beaches and park time appealing, provided everyone is comfortable with the boat ride and water activities. The small group and the crew’s practical help make a long day easier to manage.

Skip it, or ask questions first, if you have back or hip problems, need dependable shade, dislike speedboats or prefer to spend a whole day in one place. If you do go, choose your priorities before reaching Mljet, bring the right shoes and sun protection, and leave some flexibility for weather-driven changes. For the right person, this is a strong way to trade Dubrovnik’s city streets for a full day of Adriatic coast.

FAQ

How long is the tour?

It lasts about 10 hours. The start time is 7:30 am, and the tour ends back at the meeting point in Dubrovnik.

Where does the tour start?

Meet at Lapadska obala 4, 20000 Dubrovnik, Croatia.

Is the Mljet National Park entrance fee included?

No. The fee is €25 per person and is paid separately.

What is included in the price?

Fuel surcharge, bottled water, safety equipment, snorkel gear and wind jackets are included.

How many people can join the tour?

The maximum group size is 12 people.

What happens if bad weather cancels the tour?

You will be offered a different date or a full refund.