From Dubrovnik/Cavtat: Blue Cave, Sunj Beach Speed Boat Tour

The best part of this outing is the quick change of scenery: Dubrovnik’s old walls from the sea, glowing water inside Koločep’s Blue Cave, narrow passages through the Three Green Caves, and a sandy island beach, all in half a day. I like the included drinks and snorkeling gear, and I like that Šunj Beach gives you real time to dry off and relax instead of rushing from boat to boat.

The catch is that cave stops can get crowded in summer, and the speedboat ride can feel bumpy if you get seasick. You also need basic swimming skills. This is an active water trip, not a sightseeing cruise where you stay seated.

Key points at a glance

• Swim into Koločep’s Blue Cave: The turquoise glow comes from sunlight filtering through the sea, and you reach the cave by swimming through its narrow entrance.
• Try three different cave experiences: Two of the Three Green Caves are broad and easy for snorkeling, while the third offers a narrow swim-through passage.
• Get 1.5 hours at sandy Šunj Beach: Lopud’s famous beach is the relaxed part of the day, with shallow water and beachfront bars.
• See Dubrovnik from the Adriatic: The return route offers a strong view of the old city walls, red roofs, and shoreline.
• Enjoy drinks without carrying a cooler: Beer, white wine, water, cola, Fanta, and iced tea are included.
• Expect a social boat atmosphere: Music, friendly guides, and a small shared group make this more of a fun day out than a quiet nature trip.

Why this Dubrovnik boat trip works so well

At $71 per person, this tour packs several popular Dalmatian experiences into four to five hours. You get a speedboat ride, two cave stops, beach time, snorkeling equipment, and drinks. Booking these pieces separately would take more planning, and you would lose the easy rhythm of moving from one island stop to the next.

I especially like the balance between activity and downtime. The caves give you a reason to get in the water, while Šunj Beach lets you slow down. You are not spending the entire trip swimming, but you are also not sitting on a boat for hours.

The guides help shape the mood. Ivan is repeatedly singled out for his humor, music, steady handling of the boat, and attention to drinks. Rino, Mario, Dora, Peter, Leo, Tommy, and others have also been praised for being friendly and helpful. Do not expect a formal lecture about Croatian history. Expect simple local information, safety instructions, good music, and a host who keeps an eye on the group.

The main limitation is the setting itself. Koločep’s caves are popular, especially in July and August. Several boats may arrive around the same time, so the water near the Blue Cave can feel busy. The experience is still attractive, but you should not picture a private cave visit.

Leaving Dubrovnik and seeing the walls from the water

Departures are available from Dubrovnik Old Town port, Cavtat, Mlini, and Srebreno, depending on the option you choose. The precise meeting point changes with the booking, so check it carefully rather than assuming every boat leaves from the same pier.

Once the boat pulls away, Dubrovnik begins to make more sense as a fortified coastal city. From the water, the old walls rise above the Adriatic, with the red roofs of the Old Town behind them. This is one of the best angles for seeing how tightly the medieval city sits between stone fortifications and the sea.

The first boat ride lasts about 25 minutes. A speedboat gets you to Koločep quickly, but it also means wind, spray, and a lively ride across open water. Hold onto hats and loose belongings. If you are prone to motion sickness, take that seriously and consider bringing suitable medication before departure.

The boat atmosphere is part of the appeal. Music is often played during the crossings, and drinks are available along the way. Some people love the party-like feel, while others may find the music too loud. This is worth considering if you want a quiet nature excursion.

Koločep’s Blue Cave and its glowing water

The Blue Cave is usually the emotional high point of the trip. It is reached by swimming through a narrow entrance, so the cave is not suitable for simply walking inside or staying dry on the boat.

Once inside, sunlight reflects through the sea and creates a blue-green glow. The effect depends on the light, water conditions, and the number of people in the cave, but the short swim through the entrance is what makes the stop memorable. The water is clear enough for snorkeling, and the included mask and snorkel let you look below the surface rather than only admiring the color from above.

You normally have about 30 minutes here. That is enough for a swim, a look inside the cave, and some time in the surrounding water. It is not enough for a long, relaxed snorkeling session if conditions are busy.

The entrance can be awkward when waves are moving or several boats are unloading swimmers. Get your bearings before you enter the water, listen to the guide, and keep aware of nearby boats. Lifejackets are available, as are noodle floaters, but neither replaces the ability to enter the water, resurface, float, turn, and swim to safety.

Some visitors use the rocks around the cave for cliff jumping. Treat this as an optional extra, not a central part of the tour. Only do it if the guide says conditions are suitable and you are confident with the height and water entry.

The Three Green Caves, with an option for every level

After roughly 10 minutes by speedboat, you reach the Three Green Caves, also on Koločep. This stop lasts about 30 minutes and offers more choice than the Blue Cave.

Two caves are wider and easier to explore by swimming and snorkeling. They work well if you want a calmer look at the rock formations or prefer not to squeeze through a tight opening. The third cave is narrower. Swimmers can pass through the island and emerge on the other side, which gives the stop a little more adventure.

I like this arrangement because you can choose your own level of effort. Confident swimmers can try the passage, while anyone who wants a simple water stop can remain in one of the wider caves. You do not need to force yourself into the narrow route to get value from the visit.

The water is the star here. Croatia is known for exceptionally clear coastal water, and the snorkeling stops let you see that clarity at close range. Still, this is not a dedicated marine-life tour. The main interest is the caves, rock walls, changing light, and the pleasure of swimming in clean Adriatic water.

As at the Blue Cave, boats and swimmers can gather in the same area during the high season. Keep your head up near the boat and follow instructions when returning to the ladder.

Šunj Beach gives the day room to breathe

A 15-minute ride takes you to Šunj Beach on Lopud, the most relaxed stop of the outing. You get about 1.5 hours here, which is enough time to swim, sit on the sand, order a drink, and have something to eat if you wish.

Šunj is known for its fine white sand and shallow turquoise water. The shallow section extends a long way from shore, making this a pleasant change from the rocky swimming areas around the caves. The boat anchors as close to shore as conditions allow, but you should still expect to get into the water for the final approach if the boat cannot pull directly onto the beach.

The beachfront bars use blue umbrellas and offer drinks, food, sunbeds, and umbrellas. A useful local detail is that buying a drink can get you a complimentary sunbed and umbrella. The exact arrangement and price should be checked on the day, but one reported price for a drink and chair setup was €15.

Lunch is not included. You can buy food at the beach, but do not treat this as a full meal stop with a planned restaurant reservation. The time is better used flexibly, especially if you want to swim before returning to the boat.

Šunj is not an empty beach. It has enough facilities to make the stop easy, but that also means it can feel lively in the main summer months. In the shoulder season, services may be limited. From November through April, the beach bars and services are not operating in the same way, and the stop may change to Lopud village or Koločep village, where cafés, restaurants, or shops are open.

The return ride and the drinks included

The return to Dubrovnik takes about 25 minutes, followed by a scenic pass along the Old Port and city walls. The boat route makes the trip feel like more than a transfer. You get another look at the coast, and the open water gives the old city a strong final frame.

The included drinks are a real part of the tour’s value. You can expect local beer, white wine, iced tea, cola, Fanta, and water. They are especially welcome after the caves, when you have been swimming and sitting in the sun.

Do not expect fresh fruit or a full snack service. One person wished for more drinks and fruit, so pack a small snack if you tend to get hungry. Since lunch is not included, you should also eat beforehand or plan to buy something at Šunj.

The atmosphere on the return can become quite lively. Music is common, and some guides turn the ride back into an informal boat party. That suits people looking for fun. If you want a quiet cruise, this may not be your ideal excursion.

What the $71 price really includes

The $71 price is fair if you want several activities in one booking. The package covers the boat, driver and guide, snorkeling equipment, drinks, the cave visits, and time at Šunj Beach. The strongest value comes from the combination, not from any single stop.

A private speedboat trip would give you more control over timing and possibly more privacy, but it would cost more. A basic ferry trip to Lopud would cost less, but it would not give you the Blue Cave, Green Caves, onboard drinks, or a guide managing the route.

The group is shared rather than private. One boat described in the feedback carried no more than about 14 people, though the exact size can vary. That is small enough to keep the outing social without feeling like a large excursion vessel, but it does not guarantee solitude at the caves.

The 87 percent perfect score for transport fits the practical picture: the boat is the main tool that makes the day work. You cover the island connections quickly, get a lively ride, and return to Dubrovnik within half a day.

Who should book this and who should skip it

I would choose this tour if you like swimming, snorkeling, music, and a little speed on the water. It suits couples, families with confident swimmers, and anyone who wants to see several coastal highlights without giving up a full day.

It is also a smart choice for a first visit to Dubrovnik. You see the city from offshore, visit nearby islands, and get a taste of beach life beyond the Old Town.

I would skip it if you have back problems, severe seasickness, or no swimming ability. Wheelchair users may find the boat access unsuitable, and the activity is not recommended for people over 80. One person with a disability did receive kind help boarding, but access remains a practical concern and should be discussed before booking.

The captain can change the order of stops when weather or sun position makes another route better. For example, the Green Caves may come first and the Blue Cave second. This is sensible, but it means you should view the itinerary as flexible rather than fixed.

Useful preparation before you go

Bring swimwear and a towel. A waterproof phone case is a good idea if you want photos inside the caves, since the most memorable views are in the water.

Wear something secure on your head and keep loose items tucked away during the faster crossings. Bring a small snack if lunch matters to you, and ask the crew about toilets. Toilets are usually available only at Šunj Beach, although a boat with a toilet may sometimes be used.

The tour operates in English, Croatian, Bosnian, and Serbian. Cancellation is free up to 24 hours before departure, and you can reserve now and pay later, which helps if your coastal plans depend on the weather.

Should you book this speedboat tour?

Book it if you want an active half-day with excellent water stops, a sandy beach, and a friendly onboard mood. The Blue Cave is the visual highlight, the Three Green Caves add choice, and Šunj Beach prevents the day from becoming one long series of swims.

Do not book it expecting a private, quiet expedition or untouched caves in high summer. Boats gather around the popular stops, music can be loud, and the ride can be rough. For confident swimmers who want a lively and good-value look at Dubrovnik’s nearby islands, this is one of the more efficient ways to spend four to five hours.

FAQ

Where does the Blue Cave speedboat tour depart from?

Departure options include Dubrovnik Old Town port, Cavtat, Mlini, and Srebreno. The exact meeting point depends on the option booked.

How long does the tour last?

The tour lasts about four to five hours. Starting times vary, so check availability for your chosen date.

Is the tour private?

No. This is a shared small-group speedboat tour rather than a private charter.

What stops are included?

The route includes a panoramic view of Dubrovnik’s city walls, Koločep’s Blue Cave, the Three Green Caves on Koločep, and Šunj Beach on Lopud. The captain may change the order because of weather or sun position.

Is snorkeling equipment provided?

Yes. Masks and snorkels are included. Lifejackets and noodle floaters are also available for safety and support.

Do I need to know how to swim?

Yes. Basic swimming ability is required. You must be able to enter the water, resurface, float, turn, and swim to safety.

Are drinks included?

Yes. Included drinks include local beer, white wine, iced tea, cola, Fanta, and water.

Is lunch included?

No. Lunch is not included. You can buy food at Šunj Beach when the beach services are operating.

Are toilets available during the tour?

Toilets are usually available at Šunj Beach. Sometimes a speedboat with a toilet is used, so ask the crew on the day.

What happens to the Šunj Beach stop from November through April?

When Šunj Beach services are not operating and the sea is cold, the stop may be changed to Lopud village or Koločep village. The alternative depends on the day and which cafés, restaurants, and shops are open.