REVIEW · BLUE CAVE & GROTTO
Kotor: Boat Cruise with Blue Cave Swim and Submarine Base
Kotor’s best coastal sights come together on this three-hour speedboat ride, which mixes old stone churches, wartime sites, seaside towns, and a swim in clear blue water. You move quickly between stops, so you see far more than you could on foot or by a slow harbor cruise.
I like the combination of history and swimming, especially the contrast between Our Lady of the Rocks and the abandoned submarine tunnels. I also like the friendly, safety-minded skippers. Andre, Marko, Peter, and Marco are all praised for clear explanations and helping nervous swimmers. The main catch is that the Blue Cave can be crowded, and swimming inside it is not guaranteed.
Key points to know before you book

- Fast route around the bay: The speedboat covers Our Lady of the Rocks, Mamula, the Blue Cave, and the submarine tunnels in three hours.
- Swimming is part of the fun: You get a snorkeling mask, life-saving equipment, and time in clear water near the Blue Cave.
- The cave visit can vary: Boat traffic may limit swimming inside the cave, so your skipper may use a quieter nearby cove instead.
- History gives the trip substance: You’ll hear about the Yugoslav submarine tunnels and Mamula fortress, once used as a concentration camp during World War II.
- The boat setup is practical: Water, onboard Wi-Fi, a fridge, music, shade, and comfortable seating are provided.
- Good value at $56: For a half-day outing with transport, a guide, several sights, and swimming, the price is fair.
Why this Kotor speedboat trip works so well

Kotor Bay is easy to admire from shore, but the water gives you a much better sense of its scale. Mountain walls rise around the bay, while small coastal towns line the edge in neat rows of pale stone and red roofs. From a speedboat, you can connect several far-flung stops without spending most of the day in a vehicle.
The boat ride itself is part of the attraction. You’ll feel the boat pick up speed between stops, with sea spray, music, and wide views across the bay. It is lively rather than sedate, but the pace is broken up by short visits and a proper swim.
At $56 per person, I consider this a strong value for anyone who wants a broad introduction to the bay. You get transport by boat, an English-speaking skipper, bottled water, a snorkeling mask, and safety equipment. Food and extra drinks are not included, so eat beforehand and bring anything else you want to drink.
Group size can make a difference. Some departures have been small, with six or eight people, while the boat can seat up to 22. A smaller group gives you more space and makes it easier to ask questions or get help getting back aboard.
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Meeting at MontenegroGlobe near Kamelija

You meet at the MontenegroGlobe agency near shopping center Kamelija, only a few minutes from Kotor’s old town and the Port of Kotor. This is a useful location if you are staying inside the old town or arriving by boat.
Give yourself time to find the office and reach the boat without rushing. Parking in Kotor is notoriously difficult, so I would not plan to drive in at the last minute. If you are staying outside town, contact the operator before assuming a pickup is available. A few people have received boat or accommodation pickups in special circumstances, but the standard meeting point is the agency.
The tour normally returns to the same place after three hours. That makes it easy to continue with Kotor’s old town, lunch, or an afternoon walk through the harbor.
The first run across the bay

The opening speedboat ride takes about 20 minutes. Use this stretch to settle into the seating, check the shade, and take in the towns sliding past the shore.
You’ll see views toward Perast, Tivat, Porto Montenegro, and Herceg Novi. These are not long walking visits, so think of them as moving picture stops rather than full town tours. The value is the broad view from the water, where church towers, waterfront houses, and mountain slopes line up in a single scene.
The boat’s speed also helps with the schedule. A slower vessel might spend much of the day reaching the outer parts of the bay. Here, the engine gets you to the main sights quickly, leaving room for swimming and short stops.
If you get seasick, sit where the motion feels easiest and watch the horizon. The route can be lively when the water is choppy, and poor weather can lead to cancellation. High waves have been handled safely by the skippers, but the ride is still weather-dependent.
Our Lady of the Rocks and the story beneath the church

The first major stop is Our Lady of the Rocks near Perast. This artificial island was created by local fishermen in the 15th century, giving it a human-made character that is unusual even in a bay full of old churches and stone villages.
You get about 20 minutes here for a visit and photographs. The island is small, so the stop is compact rather than leisurely. You can walk toward the church and take in the view back to Perast, but you should not expect a long guided tour of the town.
Entry to the Church of Our Lady of the Rocks costs an additional 2 euros per person. Inside are 68 paintings by Tripo Kokolja, a 17th-century Baroque artist from Perast. The church ticket is optional, but I think it is worth considering if you care about local art and religious history.
This is also one of the calmer stops on the route. After the noise and speed of the boat, a few minutes on the island gives the trip a useful change of pace. Keep your camera ready for the view toward Perast, one of the prettiest waterfront towns in the bay.
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Mamula Island and a difficult wartime past

The boat then heads out toward Mamula Island, with roughly 30 minutes of travel between the earlier stop and the island. You will see the round stone fortress of Mamula from the water and stop for about 10 minutes for photographs.
The fortress was built for defense, but its darker chapter came during World War II, when the Italians converted it into a concentration camp. Your local skipper explains this history while you look at the walls from the boat.
The stop is short and does not function as a full fortress visit. You will not spend time walking through every room or exploring the interior. Instead, you get a clear view of the structure and a concise explanation of what happened there. That limitation is worth knowing, especially if Mamula is your main reason for booking.
I appreciate that the tour includes this difficult subject rather than treating the island as just another scenic photo stop. The fortress is attractive from a distance, but its past gives the place weight.
Swimming near the Blue Cave

The Blue Cave is the trip’s headline stop for many people. After about 10 minutes on the boat from Mamula, you reach the cave area for around 25 minutes of swimming and snorkeling.
Light enters through the cave opening and reflects off the rock and water, creating the blue glow that gives the cave its name. The effect is strongest when the light and sea conditions cooperate. Bring your camera, but protect it properly because this is an active swim stop.
The snorkeling mask is included, and the water can be clear enough to see fish and the underwater rock. Life-saving equipment is also carried onboard. If you are not a confident swimmer, tell the skipper before getting in. Andre has been especially attentive with nervous swimmers, using life jackets and helping people back onto the boat.
Here is the important practical detail: the tour name can make the swim sound simpler than it is. The cave may be busy with other boats, and swimming inside it may not be possible or sensible. On some departures, the skipper has taken the group into the cave for photographs and then continued to a quieter cove nearby for swimming. Some groups have also swum close to the cave entrance, while others have used a separate clear-water spot.
That flexibility is a plus. You still get the cave view and a proper swim, even when boat traffic makes the cave itself too crowded. Just book this for the overall water experience, not a guaranteed long swim inside the Blue Cave.
The 25-minute stop goes quickly. Wear your swimsuit under your clothes, keep your towel close, and listen carefully for the boarding time. The boat has a ladder or access point for reboarding, but you may need help if the water is moving.
The former submarine tunnels

After the cave, the speedboat takes about 15 minutes to reach the former submarine tunnels. You stop for approximately five minutes to photograph the entrances.
These tunnels were built by the Yugoslav Army and cut into the shoreline so submarines could hide from view. They are a striking reminder of the area’s military past, and their plain concrete entrances contrast sharply with the bright water and holiday scenery.
This is a photo stop, not an underground tour. You will see the entrances from the boat and hear some context from the skipper, but you will not walk inside or explore the tunnels. The short visit works because the boat is already carrying you past the site. It adds another layer to the day without requiring a long detour.
I like this stop because it keeps the tour from becoming only a pretty-water excursion. Our Lady of the Rocks gives you religious and artistic history, Mamula brings wartime history, and the submarine tunnels show the strategic role of the coast in the 20th century.
What the boat provides during the ride

The boat is described as clean, new, comfortable, and partly shaded. Onboard music keeps the ride relaxed, and there is a fridge, Wi-Fi, and bottled water. The shade matters in July and August, especially when temperatures reach 35°C.
You should still bring sunglasses, swimwear, a towel, and a camera. Take a light coat if you are visiting in October. The water can feel chilly once the boat gets moving, even when the day is mild. An October departure at noon was more comfortable than an early morning ride, according to one useful seasonal tip.
You do not get food or extra drinks, so bring a small snack if you need one. Keep bags compact. This is a speedboat, not a large sightseeing vessel with room to spread out.
Music and jokes can make the ride feel social, especially if you are traveling alone. A solo visitor may find it easy to meet other people during a small-group departure, but the atmosphere depends on the group and skipper.
The skippers make a real difference

The strongest part of this experience is the human side. Skippers named Andre, Marko, Marco, Peter, Igor, and others have been praised for being friendly, informative, careful, and flexible.
Peter has been noted for explaining each stop clearly, while Andre has helped swimmers reboard and looked after people who felt uneasy in the water. Marko has handled unexpected weather by taking a group to shelter and providing raincoats. These details matter because a boat trip feels much better when the skipper watches the conditions and the people onboard.
The guide’s role is not limited to steering. You get explanations about Mamula, the submarine tunnels, Our Lady of the Rocks, and the surrounding towns. The amount of detail varies by skipper, but English is the tour language.
A good skipper may also change the order of the stops. One captain switched the swimming and Blue Cave portions to reach the cave before it became crowded. That kind of adjustment can improve the experience, though it also means the exact sequence may not always match the planned order.
Timing, weather, and who should book
Three hours is a useful length. You see several major sights without giving up an entire day, and the route has enough variety to avoid feeling repetitive. It works particularly well if you have only a short stay in Kotor or want to combine the cruise with time in the old town.
Book this if you enjoy fast boat rides, open water, short history talks, and swimming. It suits couples, families with older children, solo visitors, and anyone who wants more activity than a slow harbor cruise.
It is less suitable if you want a quiet, unhurried boat ride, a full tour of Mamula fortress, or a guaranteed swim inside the Blue Cave. The boat is not suitable for wheelchair users, and the activity is not suitable for people over 95. Pets and bicycles are not allowed.
Weather can change the plan. The tour may be canceled if conditions are poor or if the minimum number of participants is not reached. You can cancel up to 24 hours ahead for a full refund, and the reserve-now, pay-later option keeps your plans flexible.
Is the $56 price fair?
For $56, you are paying for a compact route that links four distinct attractions: an artificial island, a wartime fortress, a Blue Cave swim area, and former submarine tunnels. You also get the boat, skipper, water, mask, and safety equipment.
The price is especially fair if you would otherwise book separate transport to Perast, a swimming trip, and a coastal sightseeing ride. You will not get long visits at every stop, but the tour gives you a broad look at the bay in one morning or afternoon.
The best value comes from the combination. A beautiful boat ride alone would be pleasant, but the historical stops and swimming make the outing feel more complete.
Should you book this Kotor boat cruise?
I would book it if you want to see a lot in three hours and are happy with short stops. The boat is comfortable, the route covers the main highlights, and the skippers appear to put real care into safety and timing.
Go with realistic expectations about the Blue Cave. You may swim inside or near it, but crowds and conditions can send the group to a nearby cove. Bring a towel, sunglasses, and a warm layer outside midsummer.
At $56, this is a practical choice for active sightseeing in Kotor Bay. It is not a full archaeological tour or a slow cultural cruise, but it gives you history, scenery, speed, and clear water in one well-packed outing.
FAQ
How long is the Kotor Blue Cave boat tour?
The tour lasts three hours, including the boat rides, sightseeing stops, history explanations, swimming, and the return to MontenegroGlobe.
Where is the meeting point?
Meet at the MontenegroGlobe agency near shopping center Kamelija, a few minutes from Kotor’s old town and the Port of Kotor.
Is swimming inside the Blue Cave guaranteed?
No. Boat traffic and conditions can affect access. You may swim inside or near the cave, or the skipper may take you to a quieter nearby cove for swimming.
Is the Church of Our Lady of the Rocks included?
The island visit is included, but entry to the church costs an additional 2 euros per person.
What should I bring?
Bring sunglasses, swimwear, a towel, and a camera. A light coat is useful in cooler months, especially October.
Can the tour be canceled?
Yes. The tour can be canceled because of poor weather or because the minimum number of participants is not met. You can cancel up to 24 hours in advance for a full refund.
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