Dubrovnik: Blue Cave Catamaran Tour with Drinks and Snorkel

The best part of this four-hour outing is the chance to swim inside the Blue Cave, where sunlight slips through an underwater opening and turns the water an eerie, glowing blue. You also visit the Green Cave and another swimming spot near Koločep, then cruise toward sandy Šunj Beach on Lopud.

I like the spacious catamaran, especially if you prefer a smooth ride to a bouncy speedboat. I also like the easygoing setup: drinks are served at swimming stops, waterproof bags are available, and the boat has shaded and sunny places to sit. The main caution is that the boat cannot dock at Šunj, so you must swim to shore, and rough seas can force the captain to change the route.

Key points to know before you book

• Three water stops: Allow about 45 minutes at the Green Cave, Blue Cave, and another nearby swimming site.
• A real sandy beach: Šunj is one of the few soft-sand beach stops in this part of Croatia, but you reach it by swimming from the boat.
• Comfort over speed: The catamaran has cushioned seating, open deck space, shade, a toilet, and room to move around.
• Three drinks included: Choose from bottled water, Coca-Cola, or beer at swimming stops, with a maximum of three drinks per person.
• Basic swimming skills are required: Life jackets are available on request, but the tour is not a substitute for knowing how to swim.
• Weather can change the plan: The captain may alter the route, and rough water can make cave access impossible.

Why the catamaran makes a difference

This is not a white-knuckle speedboat trip. The broad catamaran is designed for comfort, with cushioned seating, open areas, shaded spots, and enough room to move around without feeling boxed in. That matters on a four-hour trip, especially when you want to dry off, enjoy the views, or escape the strong summer sun for a while.

I would choose this boat over a small speedboat if the ride itself is part of the pleasure. The catamaran lets you settle in as Dubrovnik recedes and the Adriatic opens around you. You get a better chance to chat, listen to music, and enjoy a drink without gripping the side of the boat.

The boat also has a restroom, which is a useful feature on a half-day outing. Waterproof bags are supplied, too. Use one for your phone, wallet, and dry clothes before you jump into the water.

The atmosphere appears casual rather than formal. Music is part of the trip, and the crew keeps the mood light. Crew members named Ziggy and Divo received particular praise for being friendly and accommodating, although the staff working your departure may differ.

Leaving Dubrovnik for Koločep Island

The trip begins from Regina Maris check-in points at the Old Town or Copacabana Beach, or from the pier at Obala Lapadska 5. Do not walk straight to the boat. Check in 15 minutes early at the assigned stand or pier, then follow the directions sent to you before departure.

Once underway, the first reward is the view back toward Dubrovnik and the open Adriatic ahead. The boat heads toward Koločep, one of the Elaphiti Islands, for a series of water stops. Exact times can shift because this is a group outing and sea conditions may affect the route.

The morning departure runs from 9 a.m. to 1 p.m. from April 1 through November 1. Afternoon times change with the season: 2 to 6 p.m. in the early and late parts of the season, 3 to 7 p.m. from May 2 through August 19, and 2:30 to 6:30 p.m. from August 20 through September 1.

Bring sunscreen and a towel. Snacks are not included, so pack something to eat. Drinks are provided at the swimming stops, but the included choices are bottled water, Coca-Cola, or beer, with no more than three drinks per person.

Green Cave: the first 45-minute swim

The Green Cave is scheduled as the first major stop, with around 45 minutes for swimming and snorkeling. You can enter the water from the catamaran and explore the cave area at your own pace, subject to the crew’s instructions and sea conditions.

The name gives you a clue about the atmosphere. Light and water create changing green tones inside the cave, making this a more active stop than a simple swim from the boat. The crew can point out where to go in the water and help you make the most of the space around the cave.

You receive snorkeling equipment, though the exact setup may be basic. Several people found the masks useful, but one important detail is worth noting: if you want a snorkel mouthpiece and fins, bring your own. The supplied gear may not provide the full kit you expect.

The water can feel cold, particularly outside the hottest part of summer. That is less of an issue once you start moving, but it is worth knowing if you are sensitive to cold water. You can also remain on board and enjoy the scenery if you do not want to swim, though the main appeal of this stop is getting into the sea.

Blue Cave: sunlight turns the water blue

The Blue Cave is the visual centerpiece. Sunlight enters through an opening below the waterline, then reflects across the cave interior. The result is a striking blue glow beneath the darker rock.

This is not a long guided cave tour on foot. You approach by boat, then swim in the area when conditions allow. The scheduled stop lasts about 45 minutes, giving you time to see the cave, take photos, and cool off in the sea.

The experience depends heavily on weather and water conditions. Rough seas may make it unsafe or impossible to reach the caves. The captain can replace or adjust stops under any circumstances, so you should treat the Blue Cave as a planned highlight rather than an absolute guarantee.

Crowds are another practical consideration. The caves are popular, and you may share the area with other boats. The catamaran itself is often more comfortable than the cave stop, so bring patience and focus on the light, the water, and the unusual setting rather than expecting total solitude.

The third swimming stop near Koločep

After the named caves, the boat heads to another nearby swimming area. This stop also lasts about 45 minutes and includes time for swimming and snorkeling.

The exact location can vary, which is part of the point. The captain may choose a sheltered place or adjust the route to suit the conditions. You might find a quieter stretch of clear water, a beach area, or another small cave along the island coast.

This is often the most flexible part of the trip. You can swim, use the snorkeling gear, relax on the boat, or take one of the included drinks. If you want a slower break after the caves, this is the time to stay on deck and enjoy the ride.

Do not expect a formal lecture on local history. The crew offers information about the caves and practical advice about where to swim, but the tour puts more weight on time in the water and relaxed cruising than on a detailed cultural presentation.

Šunj Beach and the swim to shore

The final major attraction is Šunj Beach on Lopud Island, known for its soft sand. Most Croatian beaches are made of pebbles, so this stop feels different. You can stretch out, walk on the sand, and enjoy the turquoise water without worrying about stones under your feet.

There is one catch: the catamaran cannot dock directly at the beach. You must swim from the boat to shore. Waterproof bags are provided, so you can protect valuables and dry belongings while making the crossing.

This makes Šunj a better stop for confident swimmers. If you can enter the water, control your breathing, float, turn, and reach shore safely, the swim should be manageable in suitable conditions. Life jackets are available on request, but they do not replace swimming ability.

The beach visit may not always appear exactly as described. The captain can change the route, and the group may decide on a different beach. That flexibility can work in your favor if Šunj is busy, but it also means you should not book the trip solely for guaranteed time on one particular stretch of sand.

Drinks, snorkeling, and comfort on board

The included drinks add real value, even if they are not the main reason to book. You can have bottled water, Coca-Cola, or beer at the swimming stops, up to three drinks per person. That saves you from buying every refreshment separately and suits the relaxed rhythm of the trip.

Snorkeling equipment is also included. It lets you look below the surface without arranging a separate rental, but bring your own fins and mouthpiece if those matter to you. Pack a towel, swimwear, sunscreen, and snacks. There is no food included, and swimming can make you hungry.

The boat has both sunny and shaded places. That is important in July and August, when four hours in direct sun can become tiring. A covered area lets you cool down between swims, while the open deck gives you the full sea view.

The spacious design is especially useful for couples and small groups. The boat does not feel like an overcrowded transfer vessel, and the open seating makes it easier to find a comfortable place. Still, this is a group activity. You will share the boat and swimming stops with others, and the schedule cannot be tailored entirely to your party.

What the price means at $76

At $76 per person, the tour sits in the middle range for a half-day boat trip from Dubrovnik. The value comes from combining transport, crew, three water stops, snorkeling gear, drinks, a toilet, and access to a spacious catamaran in one package.

You are not paying only to reach the Blue Cave. You also get the boat ride, time at the Green Cave, a third swimming area, the chance to visit Šunj, and the comfort of a larger vessel. If you would otherwise book a boat, rent snorkeling gear, buy drinks, and arrange island transport separately, the price becomes easier to justify.

The value is weaker if you dislike group schedules or do not plan to swim. The main activity is being in the water, and the sandy beach requires a swim from the boat. You can stay aboard, but you would miss much of what makes this outing different from a standard coastal cruise.

The 4.6 rating from 139 reviews reflects a strong overall response, with particular praise for the boat, crew, music, room to relax, and quality of the stops. The most useful positive detail is consistency: people repeatedly point to the comfortable, modern catamaran and the friendly service rather than praising one lucky moment.

Who should book this outing

I would recommend it to couples, friends, and families with older children who enjoy swimming and want a relaxed day on the water. A nine-year-old enjoyed the trip with a parent, but every child must be comfortable entering the sea and following swimming instructions.

It suits you if you want:

• A slower, steadier boat ride rather than a speedboat rush
• Several chances to swim and snorkel
• A comfortable deck with shade and open seating
• A sandy beach stop in a region known for pebbles
• A social outing with music and simple refreshments

I would think twice if you have heart problems, use a wheelchair, or cannot swim. The tour is not suitable for wheelchair users, and basic swimming ability is required. You should also avoid booking it as a fixed sightseeing schedule. Sea conditions, crowds, and the captain’s judgment can change the route.

For the best chance of a smooth trip, check the weather, arrive early, and keep your valuables in the supplied waterproof bag. If you are prone to seasickness, choose a stable position on the catamaran and bring any personal remedy you normally use, though no medication is provided as part of the trip.

Final verdict: a strong choice for an active half-day

I would book this tour if I wanted a comfortable way to combine Dubrovnik’s offshore scenery with cave swimming and a sandy island beach. The boat quality and spacious layout are major advantages, and the included drinks, snorkeling equipment, toilet, and waterproof bags make the outing easy to manage.

I would not book it if my priority were a private boat, a detailed history tour, or guaranteed access to the Blue Cave in every condition. The caves can be crowded, the water may be rough, and the captain has final say over the route.

For swimmers who want more than a simple sightseeing cruise, $76 is a fair price for four hours of sea time, three swimming opportunities, and a comfortable ride among the Elaphiti Islands.

FAQ

How long is the Dubrovnik Blue Cave catamaran tour?

The tour lasts four hours. Morning trips run from 9 a.m. to 1 p.m. from April 1 through November 1, while afternoon departure times vary by season.

Where does the tour meet?

Check in 15 minutes early at a Regina Maris stand in the Old Town or at Copacabana Beach, or at the pier at Obala Lapadska 5. Check your email for the exact instructions, and do not go directly to the boat.

Which islands does the tour visit?

The route includes Koločep Island for the Green Cave, Blue Cave, and another swimming stop. It also heads toward Lopud Island for Šunj Beach, although the captain may change the route.

Is snorkeling equipment included?

Yes. Snorkeling equipment is included. If you want your own snorkel mouthpiece and fins, bring them with you because those items may not be included in the supplied equipment.

Are drinks included?

Yes. You can have bottled water, Coca-Cola, or beer at the swimming stops, with a maximum of three drinks per person.

Can the boat dock at Šunj Beach?

No. The catamaran cannot dock directly at Šunj Beach, so you must swim from the boat to shore. Waterproof bags are provided for belongings.

Do I need to know how to swim?

Yes. Basic swimming ability is required. You must be able to enter and resurface, control your breathing, float, turn, and reach shore safely. Life jackets are available on request.

Can I cancel the booking?

You can cancel up to 24 hours in advance for a full refund. No refund is provided for a late arrival or no-show caused by cruise delays, flights, buses, taxis, booking the wrong date, or similar problems.