Kotor: Boat Cruise with Blue Cave Swim and Submarine Base

The best views of Kotor Bay come from the water. This three-hour speedboat trip packs in Our Lady of the Rocks, Mamula Island, old submarine tunnels, and a swim near the Blue Cave for $56. I like the mix of scenery and history, plus the lively ride between stops. The main catch is that the swim may happen beside the cave rather than inside it, especially when other boats are present.

The boat leaves from MontenegroGlobe, near Kamelija shopping center and a few minutes from Kotor’s old town and port. I also like the practical touches: bottled water, snorkel masks, life-saving gear, onboard Wi-Fi, music, and a fridge. Boats can carry up to 22 people, but some departures have been pleasantly small, with only six or eight aboard. Bring a towel and a light coat, even in warm weather. The wind makes the open water feel much cooler.

Key points to know before booking

• A fast, well-filled route: In three hours, you reach four very different sights around Kotor Bay and the coast beyond.
• The Blue Cave stop is weather and traffic dependent: You may enter for pictures, then swim in nearby clear water rather than inside the cave itself.
• History comes with the scenery: Your English-speaking skipper explains Mamula’s wartime prison past and the Yugoslav submarine tunnels.
• Our Lady of the Rocks costs extra: The artificial island is included, but the church charges €2 per person.
• Small groups can make a big difference: The boat holds 22, though some departures have had as few as six to eight people.
• Late-season timing matters: A noon departure can be more comfortable in October, but you should still bring a coat.

Leaving Kotor on a 22-seat speedboat

You meet at the MontenegroGlobe agency near Kamelija shopping center. It is close to the old town and Port of Kotor, so you can reach it on foot if you are staying in central Kotor. Parking is difficult in the city, and that matters if you arrive by car. Give yourself time, rather than trying to squeeze into the nearest street space.

The boat ride begins with a 20-minute run across the bay. This is not a slow sightseeing launch. You get the rush of open-water speed, sea spray, and wide views of the steep mountains and waterfront settlements surrounding Kotor Bay.

The boat has shade, according to several passengers who traveled during hot weather, and it is described as clean, new, and comfortable. Music plays during the ride, which gives the trip a relaxed, social feel. If you want a quiet nature trip, the music may not suit you. If you enjoy a bit of energy between stops, it adds to the fun.

The skipper speaks English and gives information as you go. Names that have received particular praise include Peter, Andre, Marko, Igor, Marco, and Andreas. The exact skipper depends on the departure, but the strongest part of the guiding seems to be the personal attention. Guides have helped nervous swimmers, supplied life jackets for non-swimmers, taken pictures, and adjusted the order of stops to avoid the worst crowds.

Our Lady of the Rocks and the view toward Perast

The first major stop is Our Lady of the Rocks, reached after about 20 minutes. You get roughly 20 minutes here for a visit and photographs. The island is artificial, created by local fishermen in the 15th century. Its setting is wonderfully photogenic, with the water, church, nearby Perast, and mountain walls all packed into one view.

The story behind the island gives it more character than a simple photo stop. It was built up over time by local people, making it a place shaped by community tradition rather than nature alone.

You can pay €2 to enter the Church of Our Lady of the Rocks. The church contains 68 paintings by Tripo Kokolja, a 17th-century Baroque artist from Perast. The extra charge is small, and it is worth considering if you want more than an exterior view. Still, 20 minutes is not a long visit, so you should keep an eye on the time and listen for instructions from the skipper.

Perast itself is one of the prettiest waterfront towns in the bay. From the boat, you see its compact stone buildings and church towers against the mountains. The cruise also provides views of Tivat and Porto Montenegro later in the route. You will not have time to explore these places on foot, so think of this as a broad introduction to the bay rather than a town tour.

Mamula Island and a darker chapter

After another 30-minute boat ride, the cruise reaches Mamula Island. The stop lasts about 10 minutes and is mainly for photographs, but the story makes it important.

Mamula Fortress was built on the island as a defensive structure. During World War II, the Italians converted it into a concentration camp. Your skipper explains this history from the boat, giving you context for the otherwise striking stone fortification and rocky setting.

This is a brief stop, so you will not get a full museum visit or an extended walk through the fortress. That limitation is worth knowing. The value comes from seeing the site in person and hearing its past while looking at the walls, rather than from a detailed architectural tour.

I appreciate that the trip does not treat Mamula as just another pretty island. Kotor Bay has beautiful water and grand mountain views, but its history includes war, imprisonment, and military control. A short explanation at Mamula adds needed balance to the day.

The Blue Cave and the clearest swim

The boat reaches the Blue Cave after a 10-minute run from Mamula. You have about 25 minutes for swimming and snorkeling. Sunlight enters through the cave opening and reflects off the rocks and water, creating the blue glow that gives the cave its name.

The cave is the visual highlight, but you should set your expectations correctly. The description says Blue Cave swim, yet the actual swimming location can change. When several boats are waiting, you may go inside for photographs and then swim in a nearby cove. One passenger specifically noted that the swim was outside and a little farther from the cave because the cave was crowded with boats.

That is not necessarily a bad outcome. Nearby water can be calmer and clearer, with fish visible below the surface. Some skippers choose to switch the order of the swim and cave visit, allowing the boat to reach the cave when it is quieter. The exact plan depends on boat traffic, weather, and sea conditions.

Snorkel masks are supplied, and life-saving equipment is included. Guides have also provided life jackets to people who could not swim or felt uneasy in the water. You should still bring your own towel and swimwear. The boat may have a fridge and water, but food and extra drinks are not included.

The water is the active part of the experience. You climb in, look beneath the surface, and enjoy the clear color and rock formations. If swimming is central to your plans, this tour gives you a useful chance to get in the sea. If you only want dry sightseeing, you may find the boat’s stop near the cave less appealing.

Inside the old Yugoslav submarine tunnels

After the swim, the boat makes a 15-minute run to the former submarine tunnels. You stop for about five minutes to see and photograph the entrances.

These tunnels were built by the Yugoslav Army and cut into the coast for military use. Their dark openings contrast sharply with the bright water and sunny bay. The stop is short, but it gives you a quick look at a part of the region that many casual sightseeing trips skip.

Do not expect to walk through the tunnels on this excursion. The visit is a photo stop from the boat. That makes the location easy to add to a three-hour route, but it also means the explanation from your skipper matters. A good guide helps turn a five-minute look at a hole in the rock into a meaningful glimpse of the area’s recent military past.

The submarine base also adds variety. Without it, the cruise would be mostly churches, villages, and swimming. With it, the route shows several layers of the bay: local religion, seaside life, wartime detention, and Cold War military planning.

The speedboat ride is part of the attraction

The travel time between stops is not wasted time. The boat passes coastal settlements and gives you changing views of Perast, Tivat, Porto Montenegro, Herceg Novi, and the wider Bay of Kotor.

At speed, you get a strong sense of the bay’s scale. In a car, you see one waterfront road at a time. From the boat, you watch towns slide past, with mountain slopes rising behind them and small pieces of coastline opening around each bend.

The ride can be thrilling, but it can also be bumpy. High waves have occurred, and the skipper may change the plan to keep the trip safe. One guide extended a trip during a storm so the group could shelter at a beach, then supplied raincoats for the rest of the ride. That kind of flexibility is reassuring, though weather can still lead to cancellation.

If you have a sensitive stomach, sit where the motion feels easiest and avoid arriving hungry or dehydrated. The boat supplies a bottle of water, but you should bring anything else you need. Sunglasses are especially useful because of the glare off the water.

Is $56 good value for three hours?

At $56 per person, this is a strong value if you want several headline sights in one compact outing. The price includes boat transport, an English-speaking guide, bottled water, a snorkel mask, and safety equipment. You also get the speedboat itself, which is more exciting than a basic ferry transfer.

You would need separate transport to reach Mamula, the submarine tunnels, and the Blue Cave area on your own. The tour also saves planning time and combines locations that are spread around the bay and coast. That makes the price easier to justify, especially during a short stay in Kotor.

The cost does not include food, extra drinks, or the €2 church entry fee. These are minor additions, but you should know about them before you go. There is no promise of a private boat, and the boat can hold 22 people. On smaller departures, the experience feels roomy and personal. A full boat would feel more active and less private.

Three hours is another strength. You see a lot without giving up an entire day. The tradeoff is that every stop is brief. Our Lady of the Rocks gets about 20 minutes, Mamula about 10, the Blue Cave around 25, and the submarine tunnels only five. You get a sampler of the region, not long visits at each place.

Who will enjoy this cruise most?

I would choose this for anyone who wants a fast overview of Kotor Bay with a real swim included. Couples, solo visitors, friends, and families with older children can all find something here. Solo passengers have also found it easy to meet people on smaller group departures.

It is especially good for people who like variety. In one outing, you see a religious island, a coastal fortress, a military tunnel, a glowing cave, and several seaside towns. The guides also mix facts with jokes and music, so the atmosphere is not solemn from start to finish.

You should think twice if you need wheelchair access. The tour is not suitable for wheelchair users or people over 95. It is also not a good match if you dislike fast boats, short stops, or swimming in open water.

Bring sunglasses, swimwear, a towel, and a camera. For spring or autumn departures, add a coat. One October departure was much chillier than expected, and noon was suggested as the more comfortable time. In summer, morning can help you avoid the strongest heat. You should also accept that the route may change if weather or sea conditions make the planned order unsafe.

The tour can be cancelled if weather is poor or if too few people book. You can cancel up to 24 hours before departure for a full refund, and the reserve-now, pay-later option gives you some flexibility when plans are still shifting.

My verdict: book it for variety, not a long cave visit

I would book this tour if I had three hours and wanted to see the main sights from the water without organizing several separate trips. The strongest reasons are the excellent mix of scenery, history, and swimming, the comfortable speedboat, and the helpful attitude shown by guides such as Andre, Peter, and Marko.

Go in with clear expectations. The Blue Cave may be crowded, and your swim may take place in nearby clear water rather than inside the cave. Stops are short, parking in Kotor is difficult, and the boat ride can be lively.

For $56, that is a fair trade. You get a fast, good-humored introduction to the bay, plenty of photographs, a useful dose of local history, and time in the water. If that sounds like your kind of Kotor day, this is an easy tour to recommend.

FAQ

Where does the Kotor speedboat tour meet?

Meet at the MontenegroGlobe agency near Kamelija shopping center. It is a few minutes from Kotor’s old town and the Port of Kotor.

How long does the boat cruise last?

The cruise lasts three hours, including the speedboat rides and stops around the bay and coast.

What is included in the tour price?

The price includes boat transportation, a bottle of water, a snorkel mask, life-saving equipment, and an English-speaking guide.

Is entry to the Church of Our Lady of the Rocks included?

No. Entry costs €2 per person and is paid separately.

Can you swim inside the Blue Cave?

The exact swimming spot can change. You may enter the cave for photographs, but when it is crowded, the swim may take place in nearby water instead. The skipper may also change the order to find quieter conditions.

Are snorkel masks provided?

Yes. A snorkel mask is included, along with life-saving equipment.

What should you bring?

Bring sunglasses, swimwear, a towel, and a camera. A coat is also sensible during cooler weather, especially in October.

Can the tour be cancelled?

Yes. The tour can be cancelled because of poor weather or if the minimum number of participants is not reached. You can cancel up to 24 hours in advance for a full refund.