Dubrovnik: Blue Cave Tour by Speedboat

Dubrovnik’s best short boat trip combines three very different stops: a cave for swimming, rock-lined coves for snorkeling, and a real sandy beach with a bar. You get open-sea views and a brisk speedboat ride without giving up most of your day.

I like the easy, useful inclusions: snorkeling gear and cold drinks are supplied, and the waterproof bag saves your phone from a salty bath. I also like the balance of time, with about 30 minutes at the Blue Cave, 45 minutes at the Three Green Caves, and up to 90 minutes at Šunj Beach.

The catch is that this is a shared, open speedboat tour, not a quiet private outing. You need to swim into the caves, walk through shallow water to the beach, and cope with sun, wind, spray, and no toilet aboard.

Key points to know before you go

• Three water stops in four hours: Blue Cave, Three Green Caves, and sandy Šunj Beach.
• Captain Mario may be at the helm: He has been praised for smooth boat control and a well-chosen music mix.
• Swimming is essential: You need to be a decent swimmer to enter the caves.
• Drinks are included: Water, beer, wine, and Coca-Cola are available on the boat.
• The boat is open to the weather: Bring sunscreen, sunglasses, swimwear, and a towel.
• Finding the right boat takes care: Look for Antonio, a red shirt, or Adriatic Boat Tours at the meeting point.

Why this four-hour boat trip works well

You can spend days in Dubrovnik without seeing much beyond the old city walls. That is a shame, because the nearby islands offer a different side of Dalmatia: clear water, pale rock, small caves, and a beach where you can actually put your feet in sand.

This tour gives you that change of pace in half a day. You meet at Knjižnica za društvene znanosti, then head out by speedboat. The ride itself is part of the attraction. You feel the wind and sea spray rather than watching the coast through a bus window.

The price is $82 per person. That is not a bargain-basement outing, but it is reasonable for a four-hour boat trip that includes fuel, snorkeling equipment, drinks, and a waterproof bag. You still pay for food and drinks at Šunj Beach, and you need to arrange your own way to the meeting point.

The strongest value comes from the variety. A boat trip that visits only one cave can feel thin once the novelty wears off. Here, you get cave swimming, open-water snorkeling, and a proper beach stop. If you want a full-day island trip, this will feel too short. If you have only one free morning or afternoon, the compact schedule makes good sense.

Finding the departure point in Dubrovnik

The meeting point is Knjižnica za društvene znanosti, a place used by several tour boats. Staff should be waiting there. Look for Antonio, someone in a red shirt, or the Adriatic Boat Tours name.

Give yourself time to identify the correct boat. Several boats may leave from the same area, and the meeting point may not have strong signs. One booking party needed to ask around before locating the right departure. That is a small issue, but it matters when a boat leaves at a fixed time.

Bring only what you need. Large bags and luggage are not allowed, while a waterproof bag is provided for smaller belongings. Pack your phone, camera, wallet, sunscreen, and a change of clothes in a compact day bag, then keep the rest at your accommodation.

The trip is shared, so you will be riding with other people rather than choosing the music, route, or pace yourself. The boat has an open design, which gives you a better feel for the sea but less protection from weather.

The speedboat ride to Koločep

The first boat leg takes about 30 minutes according to the detailed route. You will feel the speed, wind, and spray right away. That is part of the fun, but it is not a smooth indoor transfer.

Dress for the conditions. A swimsuit under light clothing works well, and flip-flops are useful on wet surfaces. Keep sunglasses secure and protect your skin early. The sun can be strong on the water, with little shade once you leave the harbor.

The boat carries water, beer, wine, and Coca-Cola. That is handy, especially after swimming, but food is not included. Eat beforehand or plan to buy something at Šunj Beach.

There is no toilet on the speedboat. Use the restroom before departure, since the only stated toilet stop is at the beach.

Swimming into the Blue Cave

The Blue Cave at Koločep is the tour’s headline stop. You have about 30 minutes here for swimming and snorkeling around the cave.

This is not a sightseeing stop where you remain seated on the boat. To reach the cave, you need to enter the water and swim. The experience depends on your comfort in open water, so you should be a capable swimmer rather than someone who only feels secure in a pool.

Inside and around the cave, the attraction is the change from bright sea and sun to darker rock and filtered light. Bring a camera if you have one that can handle water, but do not let photography take over. Thirty minutes passes quickly once you have entered the water, found a place to hold your gear, and looked around.

The supplied snorkeling gear removes one expense and one packing problem. Still, masks fit people differently, so check yours before leaving the boat and speak up if it does not seal well.

The Blue Cave is popular because it gives the trip its name, but it is not the only worthwhile stop. If the water is busy, your time there may feel brief. That is why the next cave stop matters.

Exploring the Three Green Caves

The Three Green Caves provide about 45 minutes for photos, swimming, and snorkeling. The name describes a set of rock openings and sheltered water rather than one single chamber.

This stop gives you more time to move around than the Blue Cave. You can swim near the rocks, take photos from the boat, and look for the changing colors in the water. The caves are also a good place to use the snorkeling equipment, provided you are comfortable swimming close to rocky edges.

Natural rock surrounds the islands, and jumping into the sea is listed as one of the tour’s highlights. Treat that as an option, not a requirement. Only jump if the crew indicates it is suitable and you feel confident in the water. You can enjoy the stop without leaving the boat or making a dramatic entrance.

The Three Green Caves are a better fit for relaxed exploration than for someone who wants a long guided explanation. The focus is on being in the water, taking in the rock formations, and enjoying the boat setting.

Šunj Beach brings sand, food, and a break

After the cave stops, the boat heads to Šunj Beach for about one hour in the detailed schedule, although the general description allows 60 to 90 minutes. This is the most restful part of the outing.

Many Croatian island beaches are rocky or pebbly. Šunj gives you soft sand under your feet, which feels especially good after time in the water. You can swim, stretch out in the sun, or walk to the beach bar for a cocktail or food.

This stop gives the tour a useful change of rhythm. The caves ask you to swim and look closely at the rocks. The beach lets you stop doing things for a while. If you have been sitting in the sun on the speedboat, the chance to move onto sand and find a drink is welcome.

Food and beach-bar purchases are not included, so carry a card and some cash. The tour information also advises bringing both. Bring a towel, too. Towels are not supplied.

The beach has one practical drawback: you must walk through shallow water to reach the sand. That is manageable for most people, but it is not suitable for someone who cannot safely wade or balance on wet ground.

What Captain Mario adds to the ride

Captain Mario has received especially strong praise for his boat control and music selection. Those details matter on a short shared trip. A skilled captain can make the transfers feel confident rather than rough, and good music helps fill the open-air ride between stops.

Do not expect a formal lecture at every island. This is mainly a swimming and sightseeing trip, with the guide service offered in Croatian and English. The emphasis is on the water, the caves, and the pace of the outing.

The tour has an overall rating of 4.7 from 46 reviews, and 86 percent of ratings give the transport a perfect score. That fits the nature of the experience: the boat handling and the fun of getting between islands are central parts of the day, not mere transportation.

Is the route long enough?

The schedule totals four hours, including boat transfers of about 30 minutes, 10 minutes, 15 minutes, and 30 minutes. That leaves roughly two hours and 15 minutes at the stops, with the main time divided between the caves and the beach.

The detailed route lists the Blue Cave first, followed by the Three Green Caves, Šunj Beach, and the return to Dubrovnik. The general description presents the stops in a different order, so confirm the day’s sequence with the crew if the order matters to you.

A four-hour route is a good compromise if you are staying in Dubrovnik and want time for other plans. You can be back at the same meeting point after the final 30-minute boat ride. It is less suitable if you want a slow island day with long beach time or several hours at each cave.

Who should book this tour?

I would choose this trip if you want active water time without committing to a full-day cruise. It suits confident swimmers, couples, friends, and families with older children who can handle an open speedboat and swim into caves.

It is not suitable for pregnant women, people with back problems, wheelchair users, people prone to seasickness, babies under one year, or people over 70. Those restrictions reflect the boat ride, the swimming access, and the wet, uneven nature of the stops.

You should also think twice if you dislike direct sun or cannot tolerate spray and wind. The boat is open, and there is no promise of shade. Sunscreen, sunglasses, a towel, and swimwear are essential rather than optional extras.

Smoking and pets are not allowed, and large bags cannot come along. The tour is shared, so book it for the social speedboat atmosphere, not for privacy.

Practical packing advice for the islands

Pack lightly and keep valuables protected. You will want:

• Swimwear and a towel
• Sunscreen and sunglasses
• Flip-flops
• A camera or phone
• A credit card and some cash
• A small bag for personal items

The boat provides a waterproof bag, but it is still sensible to keep electronics in a second protective pouch if you have one. Use the snorkeling equipment provided, and bring your own only if you strongly prefer a particular mask or snorkel.

You can drink water, beer, wine, or Coca-Cola on the boat. Food is not included, so plan to eat before departure or buy something at Šunj Beach.

Use the restroom before leaving. This simple step will make the open-water portions much more comfortable.

Booking, cancellations, and timing

You can cancel up to 24 hours before departure for a full refund, and the reserve-now, pay-later option keeps your plans flexible. Check available starting times because the four-hour duration does not mean every departure runs at the same hour.

Take the date seriously. Refunds are not available for a delay, a no-show, or an incorrectly booked date. Arriving early is wise, especially because several boats may use the same departure area.

Should you book the Blue Cave speedboat tour?

Book it if you want a brisk, active half-day on the water with three contrasting stops. The Blue Cave supplies the headline sight, the Three Green Caves give you more time to swim and take photos, and Šunj Beach provides the sand-and-cocktail finish that keeps the trip from feeling like one long swim session.

Skip it if you need shade, a toilet aboard, a private boat, or an easy-access sightseeing trip. You must swim into the caves and wade to the beach, and the open boat can be windy and wet.

At $82, the package is fair for the included gear, fuel, drinks, and four hours of island access. Come prepared for sun and spray, find the correct boat early, and you will get a lively taste of Dubrovnik’s nearby coast without surrendering a whole day.

FAQ

How long is the Blue Cave speedboat tour?

The tour lasts four hours, including the boat rides between Dubrovnik, Koločep, and Šunj Beach.

Where does the tour start and finish?

It starts and finishes at Knjižnica za društvene znanosti in Dubrovnik.

How do I find the correct boat?

Look for Antonio, a staff member in a red shirt, or the Adriatic Boat Tours name. Several boats may leave from the same area, so allow extra time to identify the right one.

Which places does the tour visit?

The detailed route visits the Blue Cave on Koločep, the Three Green Caves on Koločep, and Šunj Beach.

How much time do I get at the Blue Cave?

The scheduled time at the Blue Cave is about 30 minutes for swimming and snorkeling.

How long is the stop at the Three Green Caves?

You spend about 45 minutes at the Three Green Caves for photos, swimming, and snorkeling.

How long is the stop at Šunj Beach?

The detailed schedule allows about one hour at Šunj Beach, while the general description states 60 to 90 minutes.

Is snorkeling equipment included?

Yes. Snorkeling gear, fuel, drinks, and a waterproof bag are included.

What drinks are included?

The boat provides water, beer, wine, and Coca-Cola. Food is not included.

Do I need to be a strong swimmer?

You need to be a decent swimmer because entering the caves requires swimming. You also need to walk through shallow water to reach the sandy beach.