Dubrovnik: Blue & Green Caves Private Boat Tour with Drinks

The best part of this Dubrovnik boat trip is getting into the caves rather than simply looking at them from the boat. You swim with your guide into the Blue Cave and Green Caves of Kolocep Island, then finish at Sunj Beach, one of the few sandy beaches near Dubrovnik. The private speedboat keeps the outing lively and avoids the feel of a large excursion boat.

I especially like the unlimited drinks and the use of a GoPro, two small extras that make the $73 price easier to justify. Captains such as Mario, Duje, and Robert are often praised for guiding people through narrow cave entrances and keeping the mood relaxed. The main caution is simple: swimming is central to the trip, and the Blue Cave can be crowded, dark, and awkward for weak swimmers.

Key points to know before you book

• The Blue Cave is a swimming experience: You do not just peer inside from a boat. You swim in with a guide and snorkeling gear.
• Three cave areas are visited: Kolocep offers the Blue Cave, Green Cave, and a group of three green caves, with time for swimming and photos.
• Sunj Beach adds a change of pace: After the caves, you get about 90 minutes at a sandy beach with swimming, food, drinks, and optional island exploring.
• The drink policy is generous: Beer, local rakia brandy, water, and juices are available on the boat at no extra cost.
• It is private and fast: The speedboat gives your group more space and flexibility than a large shared boat, though the ride can feel brisk on choppy water.
• Bring little and bring cash: Swimwear and a towel are essential. Large bags are not allowed, and the beach bar may require cash.

From Gruz Harbor to the open Adriatic

Your meeting point is on the pier just across from Gruz Market, near a construction site. It is not a hotel pickup, so leave time to find the pier and arrive ready to board. Large bags are not allowed, and there is no food included, so carry only what you need for four hours on the water.

The boat first passes the Franjo Tudman Bridge and the Grebeni Lighthouse. These are quick scenic moments rather than formal sightseeing stops, but they give you a fine view of Dubrovnik’s harbor and outer coast. On a private speedboat, the ride itself becomes part of the outing. You get open-water views, a fresh breeze, and a faster connection between the stops.

The boat is a practical fit for a half-day. Four hours is long enough to visit several swimming spots without turning the day into an all-day commitment. It also leaves room for another Dubrovnik activity, a late meal, or an evening walk through the Old Town.

Swimming into Kolocep’s Blue Cave

The first major stop is the Blue Cave on Kolocep Island. You receive snorkeling equipment and swim from the boat toward the cave entrance. The guide can lead you through the opening, point out the best way in, and help you keep your bearings in the darker sections.

The cave’s color depends on the sun, the water, and the number of boats nearby. Online images often make the blue glow look stronger than it may appear in person. If the cave is crowded, the effect can be less striking, and the narrow space may feel a little claustrophobic.

That does not make the stop pointless. The appeal is the combination of swimming, rock, and changing light. You are not standing on a platform waiting for a photo. You are floating inside a natural chamber, with the water moving under you and the rock close around you.

This is also the point where you should judge your comfort honestly. You need to swim for parts of the experience, though life jackets and flotation aids are available. Guides can assist non-swimmers, but this is not the best outing for anyone who strongly dislikes open water or confined spaces.

Captains including Mario and Robert have been praised for swimming with their groups and leading them through tighter sections. That matters. A guide who simply drops anchor and waits gives you a different experience from one who shows you how to enter safely.

The Green Cave and the three-cave stop

After the Blue Cave, the boat continues to the Green Cave area. The names can be a little confusing because the route includes a Green Cave stop and a later visit to three green caves around Kolocep. Think of these as several rocky swimming areas rather than one single attraction with a formal entrance.

The Green Caves are often the more relaxed part of the cave portion. You can swim, snorkel, take photographs, and enjoy the clear water without making the entire stop about one famous chamber. Some of the openings are tight, and the guide may take you through sections that are difficult to find or manage alone.

I would bring an underwater flashlight if you have one. The caves can be very dark, and a small light helps you see the rock and makes the swim more interesting. The tour provides snorkeling equipment, but an underwater light is not listed as included.

Expect roughly 30 minutes at one Green Cave stop and about 45 minutes around the three green caves, though exact time in the water can depend on conditions. One useful advantage of a private boat is the smaller group feel. You are not trying to keep up with a crowd spread across a large vessel, and the guide can often give more direct help.

Cliff jumping is advertised as part of the fun, but it should not be treated as guaranteed. Conditions, safety concerns, and the guide’s judgment may affect whether it happens. If cliff jumping is a major reason for booking, confirm the plan before departure rather than assuming it will be offered.

Sunj Beach, the sandy finale

The final major stop is Sunj Beach on Lopud Island. It is known as the only sandy beach in the immediate area, so it feels very different from the rocky coves around the caves. You get about an hour and a half here, with time to swim, relax, or find something to eat and drink.

The water is warm and turquoise, and the sand makes this a comfortable place to finish a water-heavy tour. You can simply sit by the shore, or visit the beach bar for food and cocktails. Food is not included in the tour price, and beach purchases may require cash, so plan ahead.

A useful local tip is that buying a drink at the beach bar may provide access to a sun lounger and umbrella. That arrangement can change, so ask at the bar rather than assuming it is automatic. Some people will prefer to spend the full stop swimming; others will want a shaded seat and a proper drink after the caves.

You may also rent a golf cart to see more of Lopud, including the medieval monastery and botanical garden. The monastery and garden are free to enter, but the golf cart is not included. In practice, the beach stop is short enough that adding a longer island visit may make the timing feel rushed.

Several people who enjoyed the trip still wished for more time at Sunj Beach. That is the main tradeoff of a four-hour route: you see several places, but you cannot linger everywhere. If beach time is your top priority, a dedicated beach outing may suit you better.

What the private boat changes

The word private matters here. You get a private speedboat, guide, and group rather than a large party boat packed with people. That gives the trip a more personal feel and makes it easier to swim, sit, and move around without competing for space.

It also gives the day a lively pace. The boat can travel quickly between Dubrovnik, Kolocep, and Lopud, creating the feeling of a small Adriatic adventure. Several guides allow music from a passenger’s phone, and the informal atmosphere can make the ride feel more like a day out with friends than a formal sightseeing cruise.

The boat itself has been praised as modern and comfortable, though the sea may be choppy. If you are prone to motion sickness, sit where the movement feels easiest and avoid drinking too much before the faster sections. The speed is part of the appeal, but it is not the smoothest choice on every sea day.

The tour has earned a 4.7 rating from 814 bookings, with transport receiving a particularly strong score. Guides named Mario, Duje, Robert, Drago, Marin, and others are repeatedly singled out for good humor, careful boat handling, and help in the water. Staff changes can happen, but the guide is a major part of the experience.

Drinks, photos, and the real value of $73

At $73 per person, this is not the cheapest way to visit the islands. The price becomes more reasonable when you count the private boat, four hours on the water, guide service, snorkeling equipment, GoPro use, and drinks.

The self-service drinks include beer, local rakia brandy, water, and juices. The policy is unusually generous for a short boat trip, especially if you would otherwise buy drinks at several stops. Still, drink responsibly. The caves require swimming, and alcohol plus open water is not a good combination.

The GoPro is another useful extra. You can use it to capture cave swims and underwater scenes, then receive a link to download the pictures and videos. Equipment availability can occasionally vary, so ask about the camera when you board if the photos matter to you.

You should also count what is not included. There is no hotel transfer and no food. You will need to reach the Gruz meeting point yourself, and any meal, beach drink, golf cart, or other purchase comes separately. For a group that wants a private boat and several swimming stops, the price is fair. For someone who only wants to see a cave from the deck, it is harder to justify.

Who will enjoy this outing most

I would choose this tour if you want a compact, active taste of Dubrovnik’s nearby islands. It suits couples, families with confident swimmers, friends, and solo visitors who enjoy a social boat atmosphere. The private setting also works well for a group that wants control over its own day.

It is especially good for you if:

• You want to swim inside caves instead of only taking boat photos.
• You enjoy a fast boat ride and several short stops.
• You like having beer, rakia, soft drinks, and water available.
• You want a sandy beach included in a cave trip.
• You value a guide who will enter the water and show you the route.
• You want photos without carrying a large camera.

I would think twice if you dislike swimming, need a slow and quiet boat ride, or want a long beach stay. The Blue Cave can be dark and crowded, and the water time may be tiring for people who are not strong swimmers. Life jackets help, but they do not turn the excursion into a dry sightseeing cruise.

Take swimwear, a towel, sunscreen, and as little luggage as possible. Wear something easy to manage when wet. If you plan to buy food or drinks at Sunj Beach, bring cash because the beach bar may not accept cards.

The activity offers free cancellation up to 24 hours before departure, and you can reserve now and pay later. Starting times vary, and the 2 p.m. departure can bring a pleasant return ride near sunset, though exact light will depend on the season.

Should you book the Blue and Green Caves tour?

Book it if you want the water experience, not just a checklist of sights. The strongest part is the chance to swim through the Blue and Green Caves with a guide, then relax on a sandy beach with drinks already covered.

Do not book it expecting the Blue Cave to look exactly like a social media photograph, or assuming cliff jumping will happen in every condition. The caves may be crowded, the sea may be choppy, and Sunj Beach may leave you wishing for another half-hour.

For most active visitors in Dubrovnik, the combination of a private speedboat, several cave stops, unlimited drinks, and Sunj Beach makes this a good-value half-day. Bring a towel, pack light, and tell the guide if you need help in the water. That is the best way to enjoy the trip without turning its most exciting feature into a source of stress.

FAQ

Where is the meeting point?

Meet on the pier just across from Gruz Market, near a construction site. Hotel pickup and drop-off are not included.

How long does the boat tour last?

The experience lasts four hours. Check the available starting times when booking.

Do I need to swim?

Swimming is required for parts of the tour, especially the cave visits. Life jackets are available, and guides can assist non-swimmers, but you should be comfortable entering the water.

What drinks are included?

Free self-service drinks include beer, local rakia brandy, water, and juices.

Is food included?

No. Food is not included, though you can buy food at Sunj Beach during the free time.

What should I bring?

Bring swimwear and a towel. Large bags and luggage are not allowed on the tour.