Kotor: Boat Cruise with Blue Cave Swim and Submarine Base

The best part of this Kotor boat trip is the variety packed into three hours. You race along the bay, pause at a 15th-century island, hear the grim story of Mamula, peer into old submarine tunnels, and finish with time in clear blue water near the Blue Cave. It is sightseeing with a bit of spray in your face.

I like the fast, comfortable boat, which lets you cover far more coastline than a slow harbor cruise. I also like the guides, including Marko, Andre, Peter, and Marco, who add useful local history and help nervous swimmers get safely back aboard. The main consideration is that the Blue Cave can be crowded, and the actual swim may take place just outside it rather than inside.

Key points before you book

• Three hours, six major sights: You get a brisk circuit of Kotor Bay rather than a single-stop boat ride.
• The Blue Cave stop depends on conditions: You can see the blue glow and snorkel in nearby clear water, but boat traffic and waves may change the plan.
• Small groups are possible: Some departures have had only six to eight people, while the boat can hold up to 22.
• History comes with the scenery: Mamula fortress and the submarine tunnels add a serious side to an otherwise sunny outing.
• Our Lady of the Rocks costs extra: Church entry is €2 per person, and food and extra drinks are not included.
• Bring a coat outside summer: Even warm-weather departures can feel cool at speed, especially in October.

What this Kotor speedboat tour is really like

This is not a lazy cruise where you spend three hours drifting past the same view. It is a tightly timed outing that uses a speedboat to connect the major sights around the outer Bay of Kotor and the Adriatic coast.

The boat ride itself is part of the fun. You sit low over the water, feel the wind, and move quickly between stops. Music plays onboard, and the boats used on recent departures have been described as clean, new, shaded, and comfortable. A fridge, Wi-Fi, bottled water, snorkel masks, and life-saving equipment are provided.

The mood depends partly on your skipper. Marko, Marco, Andre, Peter, Andreas, Igor, and other local guides have led departures. The strongest guides do more than point at landmarks. They explain what you are seeing, keep an eye on swimmers, and adjust the order of stops when weather or crowds make that sensible.

You should think of the tour as a sampler. It gives you a strong look at the bay, but it does not give you long, unhurried visits at every place. That tradeoff is what makes the trip useful for a first day in Kotor or for anyone with limited time.

Leaving Kotor and crossing the bay

You meet at the MontenegroGlobe agency near shopping center Kamelija, a few minutes from Kotor’s old town and the Port of Kotor. This is handy if you are staying inside the old town, but allow time to find the office and reach the boat.

Parking is difficult in Kotor, so I would not build a tight schedule around driving to the meeting point. If you are arriving by car, check parking before booking your departure. A few people have also been collected from hotel jetties or nearby waterfront locations, but you should confirm that option rather than count on it.

Once aboard, the first stretches are quick and scenic. The boat passes coastal settlements and opens up views toward Perast, Tivat, Porto Montenegro, and Herceg Novi. The speed gives you a changing view of the steep mountains, small waterfront communities, and bright water of the bay.

This is a good moment for photographs, but protect your phone. At speed, spray can reach the seating area, and you may want both hands free. Sunglasses, swimwear, a towel, and a camera are the practical essentials. Bring a light jacket outside the hottest months. One October departure found the water chilly enough that a coat was important, even at midday.

Our Lady of the Rocks and the short island visit

The first major stop is Our Lady of the Rocks near Perast. This artificial island was formed by local fishermen in the 15th century, and its position in the bay makes it one of the most recognizable scenes in the area.

You get roughly 20 minutes for a visit and photographs. That is enough to step ashore, look around, and decide if you want to enter the church. The Church of Our Lady of the Rocks contains 68 paintings by Tripo Kokolja, a 17th-century Baroque artist from Perast.

Church entry costs €2 per person and is not included in the tour price. Since the stop is short, check the time before buying a ticket. If your main interest is photography, the island, church exterior, and surrounding water may be enough. If you enjoy art and local religious history, the small extra fee is reasonable, but you should not expect a long museum visit.

Perast is especially attractive from the water. Its stone buildings and church towers sit beneath steep mountains, and the view changes as the boat pulls away. Keep your camera ready during the approach and departure, since the brief stop itself is only part of the photo opportunity.

Mamula Island and a darker chapter

After another fast run, the boat reaches Mamula Island. The stop here is mainly for photographs, lasting about 10 minutes, so this is not a fortress tour with an interior visit.

The round stone fortress has a difficult past. The Italians converted it into a concentration camp during World War II, and the guide explains the island’s wartime use. This history gives the boat trip some needed weight. Without it, Mamula could seem like just another photogenic ruin in a beautiful bay.

The short stop also shows the limits of the schedule. You have time to see the fortress from the water and hear its story, but not to explore every corner. Listen closely while the skipper speaks, then use the remaining moments for photographs.

I appreciate this part because it keeps the day from becoming a nonstop hunt for pretty water. Kotor Bay is beautiful, but its past is not decorative. A good explanation of Mamula helps you understand the places you are passing rather than simply collecting postcard views.

The Blue Cave: beauty, crowds, and flexible plans

The Blue Cave is the star of the excursion for many people. Sunlight enters the cave and reflects through the water, giving the rock and sea a blue glow. The effect is strongest when the light and sea conditions cooperate.

The planned swimming and snorkeling stop lasts about 25 minutes. You receive a mask and can look below the surface for fish and underwater rock formations. The water is clear, and several departures have included a separate, quieter swimming spot close to the cave.

Here is the important fine print: this is not always a swim inside the cave. Boats can crowd the entrance, and local conditions can make it safer or more practical to swim outside. On some trips, the skipper has shown the cave first, then taken the group to a less busy cove. That can actually make for a better swim, with more room and fewer boats around you.

The skipper may also reverse the order of the cave and swimming stop. One captain changed the plan so the group could enter the cave with fewer boats nearby. This flexibility is valuable, but it means your exact experience depends on sea conditions, traffic, and the judgment of the crew.

Non-swimmers are not left out. Guides have supplied life jackets and helped nervous swimmers climb back into the boat. You should still be comfortable around open water, since this is an active boat trip rather than a dry sightseeing ride. If you do not want to swim, you can enjoy the cave, coastline, and onboard views, but much of the excitement centers on getting into the water.

The former submarine tunnels

The old submarine tunnels are one of the more unusual stops. Built by the Yugoslav Army, these narrow entrances were used to shelter submarines. The boat pauses near the openings for about five minutes, giving you time for photographs and a short explanation.

You will not spend a long period inside the tunnels, and the trip does not present this as a full military-history visit. Still, the tunnels are memorable because they are hard to spot from land and feel very different from the churches, beaches, and resort towns elsewhere on the route.

This stop also works well as a contrast to the Blue Cave. One is a natural opening shaped by water and light. The other is a piece of military infrastructure cut into the coast. In a short tour, that contrast gives the route more character.

How the timing and boat setup affect your day

The listed sequence adds up to a brisk three-hour outing: about 20 minutes to the first island, 30 minutes of cruising, 10 minutes at Mamula, 10 more minutes to the swimming area, 25 minutes in the water, 15 minutes to the submarine tunnels, and 30 minutes back toward Kotor.

That leaves little room for delays. If waves slow the boat, another vessel blocks the cave, or the skipper changes the order of stops, one visit may become shorter. I would see that as a normal part of a coastal trip, not a flaw, but you should book this for the overall route rather than for a guaranteed number of minutes in one exact spot.

Group size can make a big difference. The boat can seat up to 22 people, but some departures have had only six or eight. A smaller group gives the skipper more room to answer questions and makes it easier to help swimmers. You cannot assume every departure will be tiny, so ask about the boat and group size if that matters to you.

The boat has shade, which is a real advantage in July and August. It also helps on very hot days when the sea spray and moving air can otherwise become tiring. Music adds a cheerful feel, though anyone seeking a quiet nature cruise should know this is a livelier ride.

Is $56 good value for three hours?

At $56 per person, the price is fair if you want a lot of ground covered in a short time. You are paying for boat transport, a live English-speaking guide, water, snorkeling gear, safety equipment, and access to several major sights. You also avoid arranging separate transport to the outer bay and nearby coastal stops.

The value is strongest for first-time visitors, cruise passengers, and anyone staying in Kotor for only a day or two. A slower private boat or several separate visits could cost more and take much longer. This tour gives you the broad outline quickly.

The price is less compelling if you want a long swim, an interior visit at Mamula, or a detailed tour of Our Lady of the Rocks church. The €2 church entry is small, but food and extra drinks are not covered. Eat before departure or bring only what the operator allows. Pets and bikes are not permitted.

With a 4.8 rating from 1,155 ratings, the strongest pattern is clear: people value the guides, scenery, boat comfort, swimming, and the mix of stops. There was also one serious complaint about an insensitive welcome at the office involving racial comments. That does not describe the experience of the boat crew, but it is worth acknowledging because the meeting point is part of the tour.

The best time to take it

Summer gives you the warmest water and the best chance of enjoying a long swim. It also brings more boats to popular spots, especially the Blue Cave. If you want a quieter feel, an early departure can help with heat and traffic, though the exact conditions change each day.

Morning trips have been comfortable in hot weather, while a midday October departure worked better than an early start because the air over the water was cold. The sensible rule is simple: choose a morning in midsummer if you dislike heat, and choose midday in cooler months if you want the sun higher.

Weather matters more than the calendar. High waves, storms, or poor conditions can lead to cancellation. On one outing, a storm arrived while the boat was out, and the guide extended the trip to shelter the group at a beach before continuing with raincoats. That sort of adjustment is reassuring, but it also shows why you should keep your schedule flexible.

Free cancellation is available up to 24 hours before departure, and you can reserve now and pay later. The activity can also be cancelled if the minimum group size is not reached.

Who should book this boat trip?

I would choose it if you want a lively overview of Kotor Bay, enjoy being on the water, and like having both scenery and history in the same outing. It is especially useful for solo visitors, couples, families with older children, and anyone who wants a social experience without committing to a full-day cruise.

You should be comfortable stepping onto a speedboat and managing a short swimming stop. The activity is not suitable for wheelchair users or people over 95, and it is not designed for anyone who needs a fully accessible boat experience.

If you want a calm, slow cruise with plenty of time at each stop, choose something else. If you want to see Our Lady of the Rocks, Mamula, the submarine tunnels, and the Blue Cave in one compact trip, this is a sensible use of three hours.

Should you book it?

Book this tour if you value variety, speed, and a good swim more than long visits at one landmark. The strongest guides, including Andre, Marko, Peter, and Marco, add local stories, help with the practical parts of swimming, and adjust the route when conditions call for it.

Go in with realistic expectations. The Blue Cave may be busy, the swim may be nearby rather than inside, and the historic stops are brief. Bring a towel, sunglasses, swimwear, a camera, and a light layer. At $56, it is good value for a fast, well-rounded look at the bay, especially when your time in Kotor is short.

FAQ

Where does the Kotor speedboat tour start?

You meet at the MontenegroGlobe agency near shopping center Kamelija, a few minutes from Kotor’s old town and the Port of Kotor.

How long does the boat trip last?

The cruise lasts three hours, including the boat rides, sightseeing stops, swimming, and the return to Kotor.

Is swimming inside the Blue Cave guaranteed?

No. You can visit the Blue Cave and swim or snorkel in clear water nearby, but boat traffic and sea conditions may mean the swim takes place outside the cave.

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

No. Entry costs €2 per person. The tour includes the boat ride, but food and additional drinks are also extra.

What should I bring?

Bring sunglasses, swimwear, a towel, and a camera. A light coat is useful in cooler weather, especially when the speedboat is moving quickly.

Can the tour be cancelled?

Yes. Poor weather or an insufficient number of participants can lead to cancellation. You can cancel up to 24 hours in advance for a full refund.