Dubrovnik: Blue Cave Catamaran Tour with Drinks and Snorkel

The best moment may come when you swim into the Blue Cave and see the sunlight turn the water an intense, shifting blue. This four-hour catamaran trip pairs cave stops around Koločep with time on the sandy shore at Šunj, a welcome change from Croatia’s usual pebble beaches.

I like two things in particular: the roomy, cushioned catamaran makes the ride a more relaxed choice than a speedboat, and three swimming stops give you time to enjoy the water rather than just snap a picture and move on. The trade-off is that you need to swim confidently, and rough seas can change the route or keep the boat from reaching a cave.

Key points before you book

• Three swimming stops: Plan for the Green Cave, Blue Cave, and another swimming spot, with roughly 45 minutes at each.
• A proper sandy beach: Šunj on Lopud is a highlight, but the catamaran cannot dock at shore, so you must swim in.
• A more relaxed ride: The spacious catamaran has cushioned seating, areas to sit in sun or shade, and a restroom.
• Drinks are included: You can have up to three bottled waters, Coca-Colas, or beers per person at swimming stops.
• Pack for the water: Bring swimwear, a towel, sunscreen, and snacks. Waterproof bags are provided.
• Sea conditions matter: The captain can change the route, and cave access is not guaranteed in rough weather.

Leaving Dubrovnik for Koločep

The tour starts from Dubrovnik, with check-in at one of the Regina Maris stands in Old Town or at Copacabana Beach, or at the pier at Obala Lapadska 5. The exact meeting point can depend on your departure, so check the message sent before the trip and do not head straight to the boat. Arrive 15 minutes early.

Once aboard, you’ll have room to move around, settle into cushioned seating, and take in the Adriatic as the boat heads toward Koločep. That space makes a difference on a half-day outing. You can sit back and enjoy the view between swims without feeling confined to one small seat, and there are both sunny and shaded areas.

This is a catamaran, not a fast boat. If you prefer a steadier, more leisurely ride, that’s a plus. The open-water crossing is part of the outing, not merely a transfer, and the wind and sea views help make the islands feel like a real change of scene from Dubrovnik’s Old Town.

A restroom is available on board, which is useful when you’re spending several hours at sea. Waterproof bags are also supplied, giving you a way to protect belongings while swimming. Still, bring only what you need, and keep your phone and valuables secured.

Green Cave: a first swim among the rocks

The planned route includes a 45-minute stop at the Green Cave, where you can swim and snorkel. The cave setting gives the stop a different feel from an open-water swim, and the crew can offer practical pointers on where to go in the water. You’ll want to be comfortable getting in and out of the sea, and able to swim back to the boat.

Snorkeling is a good reason to bring a mask, but don’t expect a guided marine-life tour. You may spot fish beneath the surface, though conditions and visibility can vary. One useful packing detail: a guest found that a mask was available but preferred to bring a snorkel mouthpiece and fins. If those are important to your swim, check with the operator before departure rather than assuming every piece of equipment you want will be supplied.

The stop is scheduled for about 45 minutes, enough to swim and look around without turning the tour into a long beach day. If you’d rather skip snorkeling, you can simply swim or stay aboard and enjoy the scenery. Just remember that the boat is visiting several places on a set schedule, so this is not a private, linger-as-long-as-you-like outing.

Blue Cave: sunlight, sea, and changing conditions

At the Blue Cave on Koločep, sunlight entering through an opening creates the blue glow that gives the cave its name. The effect depends on the light and sea conditions, so it may look different from one visit to another. The setting is striking, but it’s best to approach it as a natural moment, not a guaranteed picture-perfect show.

You’ll have around 45 minutes at this stop for swimming. The cave’s appeal is as much about being in the water and seeing the light from sea level as it is about viewing it from the boat. If the sea is choppy, though, getting close or swimming at the cave may not be safe. The captain can change the route, and one recent departure had to miss the caves because the water was rough.

That possibility is worth taking seriously if the caves are your main reason for booking. The crew may offer another stop or adjust the day, but the route is not fixed in all conditions. The sea gets the final say; the captain’s job is to keep the group safe.

The crew adds to the ease of the outing by giving instructions about the caves and the water. On some trips, the host Ziggy and Captain Divo have been part of the team, though the crew can vary. English and Spanish are the listed tour languages.

A third swim stop and the draw of Šunj Beach

The itinerary includes a third swimming stop, listed as a less specified location, with another 45 minutes for swimming and snorkeling. The exact place can depend on conditions and the captain’s route choices. Think of this stop as a chance to get another swim in, rather than a promise of one particular cove.

The tour also heads toward Lopud and Šunj Beach, known for its long stretch of sand. In a country where many beaches are pebbly, soft sand is a welcome change. It’s an easy place to stretch out, dry off, and enjoy the turquoise water before returning to Dubrovnik.

There’s an important practical catch: the boat cannot dock at Šunj, so you must swim from the catamaran to shore. Waterproof bags are provided for belongings, but you still need to be at ease in the water and able to make the crossing. If swimming to shore sounds uncomfortable, ask the operator about conditions before you book, and don’t count on stepping directly onto the sand from the boat.

The beach stop is one reason to bring a towel and sunscreen, along with swimwear you can wear under your clothes. Snacks are not included, so pack something if you’re likely to get hungry. The tour lasts four hours, and while drinks are supplied at swimming stops, food is not.

What the $76 fare includes

At $76 per person, this is a mid-priced half-day boat trip rather than a bare-bones transfer. The fare covers the boat, crew, snorkeling equipment, a restroom, waterproof bags, and up to three drinks per person. At the stops, those drinks are bottled water, Coca-Cola, or beer.

The value comes from combining transport between several island swimming spots with time to swim and relax aboard a roomy boat. A catamaran with shaded and sunny areas is especially useful in summer, when a smaller, exposed boat can feel hot and cramped. The crew and equipment also save you from arranging a separate boat and bringing every item yourself.

There are limits. Snacks are extra, and the included drink allowance is capped at three per person, despite some people finding that drinks felt plentiful on their particular trip. Hotel pickup and drop-off are not included, so you’ll need to arrange your own way to the meeting point.

The group size is not specified, and the boat’s comfort does not mean you’ll have unlimited personal space. Still, the seating and layout can make this feel less cramped than a small speedboat. If you’re choosing between a quick ride and a more comfortable sail, the catamaran offers a slower pace and a better chance to relax between stops.

Timing, swim skills, and other practical details

The tour runs for four hours, with morning departures from April 1 to November 1, usually 9:00 am to 1:00 pm. Afternoon times shift by season: 2:00 pm to 6:00 pm from April 1 to May 1 and September 2 to November 1; 3:00 pm to 7:00 pm from May 2 to August 19; and 2:30 pm to 6:30 pm from August 20 to September 1. Check availability for the date you want, since times are approximate and the route includes several stops.

You need basic swimming ability: you should be able to enter and resurface, control your breathing, float, turn, and reach shore safely. Life jackets are available on request, but they do not replace swimming skills. The activity is not suitable for wheelchair users or people with heart problems.

Pack swimwear, a towel, sunscreen, and snacks. A hat can help during the ride, though it is not on the required packing list. If you plan to snorkel, ask ahead about the equipment provided, especially if you want fins or a particular style of snorkel.

The tour offers free cancellation up to 24 hours ahead, and you can reserve now and pay later. But late arrival or a no-show is not refundable, including delays involving a cruise, flight, bus, or taxi. Build in time to reach the meeting point, and check your email for the final instructions.

Who will enjoy this catamaran trip?

I’d choose this trip if you want a comfortable way to see the caves and swim around the Elaphiti Islands without spending a full day at sea. It suits couples and small groups who value room to sit, music, drinks, and several water stops. It can also work for families with children who swim confidently; a nine-year-old enjoyed the trip with a parent, but that does not remove the need for each swimmer to manage in the water.

It’s less suitable if you want a history-focused tour. The emphasis is on sailing, swimming, caves, and beach time, not a long account of the islands’ past. It’s also not the right choice if you cannot swim safely, dislike getting into the sea from a boat, or need a guaranteed visit to the Blue Cave.

Crowds are another factor. Cave and beach stops can be busy, especially in summer. The boat may feel roomy, but it cannot make popular swimming spots private. Go for the sea, the scenery, and a relaxed half-day, not solitude.

Should you book it?

Book this tour if you want an easygoing catamaran ride with three chances to swim, a shot at the Blue and Green caves, and time near a rare sandy beach. The comfortable boat, useful onboard facilities, friendly crew, and included drinks make the $76 fare reasonable for a four-hour outing.

Skip it if swimming is not your thing, you need a fixed route, or you would be disappointed if rough seas prevented cave access. Check the meeting-point message, bring snacks and sun protection, and be ready to swim to shore at Šunj. With those expectations, this is a strong way to trade a few hours of Dubrovnik’s stone streets for clear water and island views.

FAQ

How long is the tour?

The tour lasts four hours. Times are approximate because the boat visits several locations.

Where does the tour start?

Check-in is at a Regina Maris stand in Old Town or at Copacabana Beach, or at the pier at Obala Lapadska 5. Check your email for the meeting point and do not go directly to the boat.

How early should I arrive?

Arrive 15 minutes before departure to check in.

What languages are spoken?

The live tour guide is available in English and Spanish.

Are snorkel masks included?

Snorkeling equipment is included. One useful note is that a swimmer found a mask available but brought their own fins and snorkel mouthpiece, so check with the operator if you need those items.

How many drinks are included?

You may have up to three drinks per person at the swimming stops. Options are bottled water, Coca-Cola, or beer.

Can the boat dock at Šunj Beach?

No. The boat cannot dock at the beach, so you must swim to shore. Waterproof bags are provided for belongings.

What should I bring?

Bring swimwear, a towel, sunscreen, and snacks. Snacks are not included.

Is the route guaranteed?

No. The captain may change the route, and rough seas can prevent access to the caves. Times at each stop are approximate.

Can I cancel for a refund?

You can cancel up to 24 hours in advance for a full refund. Missed departures, including those caused by transport delays or late arrival, are not refundable.