Dubrovnik: Blue Cave Tour by Speedboat

Dubrovnik’s best water outing is less about sightseeing from a boat and more about getting wet. This four-hour trip takes you to Koločep’s Blue Cave and Three Green Caves, where you swim from the speedboat into clear, shadowy openings. Then you get a proper beach break at Šunj, with sand, cocktails, and time to slow down.

I like the efficient route, which packs three very different stops into half a day. I also like the practical extras: snorkeling gear, cold drinks, fuel, and a waterproof bag are included. The catch is that you need to be a decent swimmer, and an open speedboat offers little shelter from sun, wind, cold, or sea spray.

Key points at a glance

• Swim into Koločep’s Blue Cave: You enter from the sea, so this is not a walk-in cave visit.
• Spend 45 minutes at the Three Green Caves: You have time for photos, swimming, and snorkeling rather than a quick drive-by.
• Relax at Šunj Beach for 60 to 90 minutes: This is the least rushed part of the trip, with sand, swimming, food, and cocktails nearby.
• Ride an open speedboat for about 85 minutes total: The boat is quick and exciting, but you should dress for spray and wind.
• Bring only a small day bag: Large bags and luggage are not allowed, while a waterproof bag is provided.
• Meet Antonio or a staff member in a red shirt: Several boats leave from the same area, so arrive ready to look for Adriatic Boat Tours.

Why this short boat trip works

At $82 per person, this is priced as an active half-day outing rather than a simple transfer to one beach. You are paying for the boat, fuel, guide, snorkeling equipment, drinks, and access to three separate coastal stops. If you want to see several islands and still have most of your day free, the value is quite good.

The strongest part is the variety. The Blue Cave gives you a short, atmospheric swim. The Three Green Caves allow more time in the water and around the rock openings. Šunj Beach then provides a change of pace, with soft sand and a beach bar instead of another rocky swim.

You should not book it expecting a quiet private cruise. This is a shared group tour, and the speedboat is open. You will feel the weather directly. That is part of the fun on a warm, calm day, but it can be tiring if you dislike spray, strong sun, or boat movement.

The activity has a 4.7 rating from 46 reviews, and 86 percent of guests gave the transport a perfect score. The praise focuses on the captain’s boat handling, music, the caves, and the beach finish. Captain Mario has been particularly noted for smooth control and a good onboard soundtrack.

Finding the boat near Dubrovnik’s meeting point

The meeting point is the Knjižnica za društvene znanosti. Look for Antonio or another Adriatic Boat Tours staff member wearing a red shirt. The meeting area is shared by several boat companies, so it is worth arriving early enough to sort out the correct departure.

This is not a grand marina with an obvious single boarding gate. One recent departure involved some confusion because several boats were leaving nearby. Do not simply follow the first boat crew you see. Ask for Adriatic Boat Tours by name and confirm that you are joining the Blue Cave tour.

There is no hotel pickup or drop-off. You make your own way to the meeting point and return there at the end. Use a restroom before boarding because the speedboat has no toilet. The only toilet stop on this route is at Šunj Beach.

The speedboat ride across the islands

The boat ride takes you away from Dubrovnik’s urban edge and toward the nearby islands. The route includes roughly 30 minutes of speedboat travel to the first cave area, shorter runs between stops, and another 30-minute ride back to the meeting point.

An open boat gives you the full sea experience. You can feel the wind, sun, cooler air, and spray, so pack a light layer even on a hot day. A swimsuit, flip-flops, sunglasses, sunscreen, and a towel make sense. Keep your phone and camera in the waterproof bag when you are not using them.

Drinks are included: water, beer, wine, and Coca-Cola. This is helpful because the sun and salt water can catch up with you quickly. Food is not included, so save room in your budget for the beach bar at Šunj if you want lunch, a snack, or a cocktail.

The boat is shared, and seating arrangements are not described in detail. You should expect a social outing rather than personal space or a custom route. The trade-off is speed: you can reach several coastal spots in four hours without spending the whole day on a boat.

Swimming into the Blue Cave

The Blue Cave at Koločep is scheduled as a 30-minute stop. You remain near the boat, then swim into the cave area to see the changing light and rock walls from the water.

This is the most striking stop for atmosphere, but it is not a dry sightseeing visit. You need to swim into the cave, and the access can involve moving through the sea around the opening. The tour is not suitable for weak swimmers, and you should be comfortable getting in and out of the water without a dock or staircase.

Thirty minutes is enough for a swim, a look around, and some photos if conditions cooperate. It is not enough for a long, leisurely snorkel session. The water is the main attraction here, so bring a waterproof phone case or use the supplied waterproof bag for everything else.

The Blue Cave can also be the most weather-sensitive part of the day. Light, water conditions, and sea movement affect how the cave feels. Your guide and captain control the practical details, but no cave visit is completely separate from the weather.

Exploring the Three Green Caves for 45 minutes

The Three Green Caves receive a longer stop, around 45 minutes. You have time to swim, snorkel, take photos, and look at the rock formations from different angles.

This is where the tour feels most active. Instead of one quick cave entrance, you get a wider window for water time. If you enjoy snorkeling, this extra half-hour matters. It gives you a chance to settle into the water after the first stop and explore without checking the clock every few minutes.

Snorkeling equipment is included, which saves you from carrying your own mask and fins. Still, bring your own gear if you have equipment that fits you especially well. The tour description does not specify the type or size range of the supplied gear, so a comfortable personal mask can make the swim easier.

The caves are natural rock settings, not built attractions. Expect uneven stone, open water, and no handrails. Flip-flops are useful for the beach, but you may prefer secure footwear for moving around rocky edges. Take the captain’s instructions seriously, especially if the sea is moving.

A proper break at sandy Šunj Beach

Šunj Beach is the most relaxing stop and usually lasts between 60 and 90 minutes. After the caves, the soft sand feels like a reward. You can swim, dry off, order food or a cocktail, and take a break from the boat.

This beach stop gives the tour a useful rhythm. The caves require swimming and attention, while Šunj lets you sit down and enjoy the shore. You also get the only regular toilet opportunity of the route here, so use it before returning to the boat.

You need to walk through shallow water to reach the sandy beach. That detail matters if you have limited mobility or are carrying a lot of belongings. Large bags are not allowed on the tour anyway, and you should keep your beach items compact.

Food and cocktails cost extra. The included drinks cover basic refreshment, but they do not replace a meal. Bring a credit card and some cash, particularly if you want to buy something at the beach bar. Towels are not included, so pack one.

The beach can easily become the favorite part of the outing if you prefer comfort over constant activity. You get a genuine chance to relax, but the stop is still time-limited. Keep an eye on the group’s return time so you do not turn a pleasant beach break into a stressful boarding scramble.

How much activity should you expect?

This is not a sit-back-and-watch-the-coast excursion. You will board a fast boat, swim from the boat, snorkel around cave openings, walk through shallow water, and climb back aboard. The physical demands are moderate, but the swimming requirement is real.

The tour is not suitable for pregnant women, people with back problems, wheelchair users, people prone to seasickness, babies under one year, or people over 70. It is also a poor fit if you dislike boats without toilets or feel uneasy in open water.

Strong swimmers will get the most from the experience. You do not need to spend every minute snorkeling, but you should be able to swim into the caves and manage the water around the boat. If you are unsure about your swimming ability, choose a beach-based activity instead.

The open boat may also affect your comfort. Sun protection is essential, and sunscreen should be reapplied after swimming. Sunglasses with a secure fit are useful, while loose hats and unsecured phones can easily become a problem in wind and spray.

The value of the $82 price

The $82 price is fair if you want a compact island experience with several stops. Fuel alone is part of the cost, and you also receive snorkeling gear, drinks, a waterproof bag, crew service, and the speedboat ride. The schedule makes efficient use of four hours.

The value drops if you mainly want a long beach afternoon. Šunj receives about an hour to an hour and a half, but the rest of the trip is spent traveling or swimming at the caves. For a full day on sand, you should choose a different outing.

It is also worth comparing this with a private boat charter only if you have a large group. A shared trip keeps the price at $82 per person and gives you a fixed route. You give up control over timing, stops, and the pace of the day.

The included drinks are a useful touch, especially because the sun is strong. Food, cocktails, towels, tips, hotel transport, and personal expenses are extra. Budget for those before you decide that the base price covers the whole day.

A practical packing plan

Pack light. Large bags and luggage are not allowed, and you will spend much of the day moving between boat, water, rock, and beach.

Bring:

• Swimsuit and towel
• Sunscreen and sunglasses
• Flip-flops or secure water footwear
• Camera or phone in a waterproof case
• Credit card and cash
• A small change of clothes if you dislike sitting in wet swimwear

The waterproof bag provided onboard is useful, but do not treat it as a substitute for careful packing. Keep valuables to a minimum. You are not heading to a locker-equipped beach club, and the boat has limited room.

Wear something suitable for the ride back. Wet skin and sea wind can feel cold even after a sunny afternoon. A light cover-up or shirt is a sensible addition.

Booking, cancellation, and timing

The tour lasts four hours, with several possible starting times shown at booking. You can cancel up to 24 hours in advance for a full refund, and reserve now while paying later. After the 24-hour window, a delay, no-show, or incorrectly booked date does not qualify for a refund.

Check the date carefully before you confirm. Arrive early at the meeting point, especially because several boats may gather in the same area. Look for the red shirt and the Adriatic Boat Tours name rather than guessing which boat is yours.

The tour operates in Croatian and English. A live guide is included, but the main appeal is the route, the captain’s handling, and the freedom to swim at the stops. If you want long historical commentary about Dubrovnik or the islands, this is not that kind of tour.

Should you book the Blue Cave speedboat tour?

Book it if you want a lively half-day on the water, can swim confidently, and like a mix of natural caves and beach time. The caves give you the memorable action, while Šunj keeps the day from becoming one long session of jumping in and out of the sea.

I would especially recommend it to couples, friends, and active families with older children who are comfortable in open water. Captain Mario has been praised for careful boat control and a good music selection, although your captain may be someone else.

Skip it if you are prone to seasickness, need a toilet onboard, dislike sun and spray, or want a private and quiet cruise. Also skip it if you expect a long beach stay or a fully dry cave tour.

For the right person, $82 buys a smart slice of Dubrovnik’s island coast. Just arrive early, pack light, protect yourself from the sun, and treat the swimming requirement as the main condition, not a minor footnote.

FAQ

How long is the Blue Cave speedboat tour?

The tour lasts four hours, including the boat rides between Dubrovnik, Koločep Island, the caves, Šunj Beach, and the return meeting point.

Where does the tour start?

The meeting point is Knjižnica za društvene znanosti. Look for Antonio or an Adriatic Boat Tours staff member wearing a red shirt.

Is this a private boat tour?

No. This is a shared group tour, not a private charter.

Do I need to know how to swim?

Yes. You need to swim to enter the caves, and the tour states that you should be a decent swimmer.

What stops are included?

The route includes the Blue Cave at Koločep, the Three Green Caves, and sandy Šunj Beach.

Is snorkeling equipment provided?

Yes. Snorkeling gear is included in the tour price.

Are drinks included?

Yes. Included drinks are water, beer, wine, and Coca-Cola. Food and cocktails are not included.

Is there a toilet on the speedboat?

No. The speedboat has no toilet. The only toilet stop is at Šunj Beach, so use the restroom before departure.

What happens if I need to cancel?

You can cancel up to 24 hours in advance for a full refund. Refunds are not available for a delay, no-show, or incorrectly booked date.