Review · SEA CAVE AND GROTTO BOAT TOURS
From Dubrovnik: Elaphiti Islands & Blue Cave Speedboat Tour
The best part of this trip is the chance to swim into the Blue Cave, rather than simply pass it from a boat. You speed away from Dubrovnik, explore sea caves with goggles and a life jacket, then stretch out on Sunj Beach, one of the few sandy beaches near the city.
I like the small speedboat groups and the easygoing crew. Guides such as Ivan, Igor, Dora, and Ana have been praised for helping people through the caves, taking photos, and keeping the mood light with music and cold drinks. The main catch is simple: swimming into the caves can be hard in choppy water, and peak-season boats may crowd the cave entrances.
Key points to know before you book

- Blue Cave access is by swimming: You need enough confidence and stamina to leave the boat and swim through the entrance.
- Sunj Beach gives you proper shore time: Expect roughly an hour to an hour and a half for swimming, food, and a break.
- The speedboat is part of the fun: The ride offers quick views of Dubrovnik’s walls and the rocky Adriatic coast.
- Drinks are included: Water, soft drinks, iced tea, cola, and often beer or wine are available on board.
- The trip suits active half-day plans: It combines cave swimming, island scenery, and beach time in about four hours.
- Meeting the boat takes care: Go to the end of the large pier in Dubrovnik’s Old City port 15 minutes early and ask for the Karuzo desk if needed.
A fast way out of Dubrovnik’s harbor

This four-hour trip makes a good counterpoint to a full day spent walking Dubrovnik’s stone lanes. You meet at the very end of the large pier in the Old City port, then board a speedboat and leave the city behind.
The departure point is convenient once you know where to look, but it is not necessarily obvious on a busy morning. Arrive 15 minutes early. If you are unsure, ask for the Karuzo company desk, where staff can direct you to the correct boat.
The ride itself is a major part of the appeal. You get open views back toward Dubrovnik, including the old town from the water, then move among the Elaphiti Islands. A speedboat lets you cover more ground than a standard harbor cruise, but it also means a livelier ride. If the sea is rough, hold on and expect some spray.
The boats used for this trip have been described as new, comfortable, and spacious. One outing carried no more than 10 people, though group size can vary, so check the booking details for your date if a small group matters to you.
Music is often played during the ride. The mood can be quiet and scenic one moment, then more social once drinks are handed around. This is not a silent nature cruise. It is a casual sea outing with a friendly, holiday feel.
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The Elaphiti Islands: green views close to the city

The Elaphiti Islands sit close to Dubrovnik, yet the change of scene is quick. Koločep is known for thick green areas, clear water, and walking or cycling paths. Lopud is more developed, but it is also car-free, which gives the island a calmer feel than the mainland.
You may pass other coves and rocky shorelines along the way, with the guide pointing out caves and nearby islands. The exact order of stops can vary with sea conditions and boat traffic. Some departures have included a green cave, the Blue Cave, and Sunj Beach, while others have stopped at additional swimming spots.
The guides add real value here. Captains such as Ivan, Igor, Greg, and Yuri have been praised for handling the boat well and explaining the sights. Hosts including Dora, Ana, Ivana, and Iwana have helped with goggles, life jackets, photos, and cave entry.
Do not expect a long island tour on foot. The islands are the setting for the boat trip, not a series of extended village visits. You get short, focused stops built around swimming and scenery.
Swimming into the Blue Cave

The Blue Cave is the trip’s main event. Its blue glow comes from sunlight entering through an underwater opening, creating bright color inside the cave when conditions are right. You do not simply walk up to a large dock or step into a roomy cavern. The boat stops outside, and you swim toward the entrance with snorkeling equipment.
This detail matters. If you are not a confident swimmer, you may not be able to reach the cave interior. One guest enjoyed the boat, sunshine, and photos but could not enter the cave because of swimming ability. Another found the high waves intimidating and advised caution for anyone without good stamina.
The crew can help, and life jackets are provided. Still, you should treat this as an active water stop, not a passive sightseeing visit. You may need to swim through or under a narrow opening, depending on the cave. The water can also be unsettled, and several boats may gather near the entrance during the busiest summer weeks.
Bring a swimsuit and wear footwear that you can manage around a boat and rocky shore. Snorkeling equipment is included, but your own mask can be useful if you prefer a familiar fit. Keep your phone protected from spray, and do not assume every cave can be entered on every departure.
The payoff is memorable. The cave is small and atmospheric, and the color looks most striking when sunlight reaches the water at the right angle. The experience feels more personal than viewing a cave from a large excursion boat, especially when your skipper finds a quieter moment.
Green caves and other swimming stops

The tour often includes a green cave or another cave along the coast. These stops give you time to swim, snorkel, and look back at the cliffs from the water. Some departures have included a cave surrounded by high rock walls, where people spent about 30 minutes swimming and, for those who chose to, jumping from the cliffs.
Cliff jumping is not the purpose of the tour and should never be treated as compulsory. You can stay on the boat, swim at water level, or ask the crew about the safest way to enter the sea. Conditions vary, and the water may be calm on one day and rough on another.
The guides are especially useful at these stops. They can explain how to approach the cave and help you judge the water. One group appreciated being led through the cave because the entrance felt daunting. That kind of practical support can make the difference between sitting out and taking part.
At the same time, cave stops are not always leisurely. With several boats in the area, the water around an entrance can become busy. You may need to wait your turn, and the sense of solitude can disappear in July and August. If your top priority is quiet nature, choose an early departure if one is available and be prepared for some crowding.
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Sunj Beach on Lopud
Sunj is the relaxing part of the outing. After the cave swims, the boat heads to Lopud, where you get around an hour or a little more to swim, sit on the sand, and buy something to eat or drink.
A sandy beach is a welcome change after rocky cave entrances. You can use this stop to dry off, take a proper break, or simply enjoy the island without rushing. Sunj is popular with locals in summer, so it is not an empty beach. Still, the sand and car-free setting make it one of the most pleasant stops near Dubrovnik.
Beach facilities include places to buy food and drinks, and sunbeds may be available. Prices can be high. One drink was reported at about 15 euros, so bring a card or cash and budget for resort-style pricing. Food is not included in the tour price, despite one description causing confusion on that point. The included refreshments are on the boat, not a beach lunch.
The time allocation suits most people. You have enough time to swim and eat without turning the trip into a full beach day. A few people would prefer more cave time and less beach time, while others appreciate having a slower final stop. If you dislike sitting on a beach, this may feel long. If you want a balance of action and rest, it works well.
Drinks, equipment, and the onboard atmosphere

The $91 price includes soft beverages and snorkeling equipment. Expect water, cola, iced tea, and similar drinks. Beer and wine have also been offered on some trips, which explains the repeated praise for free beers and other alcoholic drinks on board.
The boat atmosphere is informal. Music may play between stops, and the crew often takes photos when asked. A friendly dog named Loki has sometimes been on board, a small but memorable bonus for animal lovers. You should not book on the assumption that Loki will be present, but the detail gives you a sense of the relaxed style.
Safety equipment includes life jackets, and the crew helps people in and out of the water. That support is important because cave entry can feel awkward, especially when waves move the boat. The trip is active, but it is not a race. Guides generally wait until people are ready before heading on.
You should bring a towel, swimsuit, sunscreen, sunglasses, and a dry bag or waterproof phone pouch. Food is not supplied, so plan to buy something at Sunj or eat before departure. The boat has drinks, but a four-hour sea outing still works better if you start with a light meal.
Is $91 good value for four hours?

At $91 per person, this is not the cheapest way to see the coast. You are paying for a small speedboat, a skipper, cave access, snorkeling gear, drinks, and transport from Dubrovnik to several island stops.
I think the price is fair if you want variety in a short window. A public boat ride may cost less, but it will not necessarily take you to swimming caves or provide the same help in the water. A private charter can offer more control, but it will usually cost far more per person.
The value drops if you cannot swim into the caves or if rough conditions prevent the main water stops. In that case, you are mainly paying for the boat ride, island views, and beach time. Those are pleasant, but they may not justify the full price for someone who wants a pure sightseeing cruise.
The strong transport ratings and overall score of 4.8 from 215 ratings point to consistent performance, especially from the crew and boat operation. The most praised features are the friendly guides, the comfortable speedboat, the music, the included drinks, and the well-paced stops.
Who should take this boat trip?
This outing is best for you if you want an active half-day near Dubrovnik. It suits couples, groups of friends, and families with older children who can manage boat movement and swimming. One parent traveling with a baby felt well supported by the crew, so families are not automatically excluded, though you should consider your own comfort with a baby on a speedboat.
You will probably enjoy it if you like:
- Short boat rides between several scenic stops
- Swimming and snorkeling in open sea
- A social atmosphere with music and drinks
- A mix of adventure and beach rest
- Small groups rather than a large sightseeing vessel
Think twice if you dislike waves, cannot swim confidently, or want a quiet, fully guided island walk. The Blue Cave is not a guaranteed inside visit for non-swimmers, and peak-season cave areas can be crowded.
The four-hour length is one of the trip’s strengths. You can fit it into a morning or afternoon and still have time for Dubrovnik’s old town, dinner, or another activity. Some trips finish a little earlier than the advertised time, but the stops are generally not rushed.
Booking details that matter
Cancellation is free up to 24 hours before departure, and you can reserve now and pay later. The tour is conducted in English, and starting times depend on availability.
For the smoothest start, go directly to the end of the big pier in the Old City port. Give yourself more than a few spare minutes if you are unfamiliar with the harbor. The Karuzo desk can point you toward the correct boat.
Ask about the expected group size, departure time, and sea conditions when you arrive. These details affect the experience more than the basic itinerary. A calm morning with a small group will feel very different from a busy summer afternoon with several boats at the caves.
Should you book it?
Book this trip if you want to get on the water, swim into a cave, and spend a relaxed hour on a sandy island beach without giving up a full day in Dubrovnik. The crew, speedboat, drinks, and compact schedule make it an appealing package.
Skip it if the Blue Cave is your only reason for going and you are not a confident swimmer. Also skip it if you want complete solitude, since summer cave stops can be busy. For most active visitors, though, this is a well-balanced way to see the Elaphiti Islands, with enough adventure to feel special and enough beach time to keep the day easy.
FAQ
Where does the speedboat leave from?
The boat leaves from the very end of the large pier in the Old City port in Dubrovnik. Arrive 15 minutes early and ask for the Karuzo company desk if you need help locating the boat.
How long does the tour last?
The tour lasts four hours. Starting times vary, so you need to check availability when booking.
Is snorkeling equipment included?
Yes. Snorkeling equipment and life jackets are provided.
Are drinks included?
Yes. Soft beverages are included, and departures have offered water, cola, iced tea, beer, and wine. Food is not included.
Do I need to be able to swim?
Swimming ability is important if you want to enter the Blue Cave or other caves. You can remain on the boat if you cannot make the swim, but the crew cannot guarantee that you will enter the cave.
Can I cancel the booking?
Yes. You can cancel up to 24 hours before the activity for a full refund. You can also reserve now and pay later.
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