Kotor: Blue Cave, and Full Bay Speedboat Tour

The best part of this Kotor speedboat tour is its variety. In three hours, you see a church on a man-made island, military tunnels cut into the coast, Mamula Island, and the Blue Cave, with a swim in clear sea water. It packs a lot into a short morning or afternoon.

I like the small group limit of 10 and the easy meeting point at Marina Kotor, just across the road from the Old Town’s Main Gate. I also like that water, safety gear, and a snorkel mask are included. The main drawback is simple: the tour moves fast, and rough water can force the skipper to skip the Blue Cave.

Key points at a glance

• Four very different sights in three hours: You visit Our Lady of the Rocks, submarine tunnels, Mamula Island, and the Blue Cave.
• A real swim stop: You get about 20 minutes at the Blue Cave, weather and sea conditions permitting.
• Small boat, small group: The boat carries no more than 10 participants, which is more personal than a large bay cruise.
• A quick visit to the island church: You have about 20 minutes at Our Lady of the Rocks, with the museum costing an extra €2.
• Long return ride: The trip back to Kotor takes about 70 minutes, giving you plenty of open-water scenery but less time at the final attractions.
• Practical meeting point: Look for the tour desk and Kristina at Marina Kotor, and arrive at least 15 minutes early.

From Marina Kotor to the open bay

The tour begins at Marina Kotor, directly across the main road from the Old Town’s Main Gate. That makes the start easy to find, though summer parking in Kotor can be difficult. If you arrive by car, allow extra time and do not count on finding a space close to the marina.

Kristina is listed as the welcoming contact at the marina. The boat carries a maximum of 10 people, a useful limit in a place where larger sightseeing boats can make a quiet bay feel crowded. You get a faster ride and a better chance of hearing the skipper without shouting across a deck.

The first 20 minutes are spent on the way toward Perast. This is not dead time. The boat gives you changing views of the Bay of Kotor, with steep coastal slopes rising around the water and old settlements appearing along the shore. You pass Perast for a short photo stop before reaching the island.

A speedboat is a good match for this route because the bay’s major sights are spread out. You spend less time waiting between stops, but you also get more wind, spray, and movement than you would on a slower sightseeing boat. Bring sunglasses and secure anything loose.

Our Lady of the Rocks and its unusual origin story

Our Lady of the Rocks is one of the most memorable sights in the Bay of Kotor. The church sits on an artificial island opposite Perast, built up over time where a Madonna and Child painting was found. The local story tells of two brothers who discovered the painting, after which the island and church took shape at that spot.

You have about 20 minutes here. That is enough for a look around the island, photographs, and a visit inside if the church is open. The short stop also keeps the whole trip moving, but it is not enough for a slow museum visit or a long historical talk.

The church and museum have seasonal opening hours. In April, May, September, and October, they are open until 5 pm. In June, the closing time is 6 pm, and in July and August it is 7 pm. You can still visit the island even when the church and museum are closed.

The museum costs €2 extra. The advertised skip-the-line benefit does not apply to the church because it is small, so do not expect a special fast entrance there. You also need suitable clothing to enter. A swimsuit is fine for the later swimming stop, but not for the church.

I like this stop because it gives the tour a cultural anchor before the more playful parts of the trip. The Blue Cave is memorable, but Our Lady of the Rocks helps explain the human stories and traditions tied to the bay.

The old submarine tunnel

After the island, the boat heads toward a former submarine tunnel. The visit lasts about five minutes, so think of it as a close look and photo stop rather than a full historical site visit.

The tunnel was used by the army to hide submarines. Its dark opening cut into the coast makes a sharp contrast with the open water outside. You see how the bay’s geography could serve both tourism and military purposes, with narrow entrances and sheltered stretches of coastline.

This stop is especially worthwhile if you like military history or unusual infrastructure. The short time here is also the limitation. You will not get a long museum-style explanation, and conditions at the entrance can affect how close the boat gets.

One piece of practical advice: keep your camera ready, but do not focus only on taking a picture. The interest is in the setting, the scale of the opening, and the odd sight of a military installation appearing among Montenegro’s coastal scenery.

Mamula Island and the route beyond the bay

The boat then passes Mamula Island, another short photo stop of about five minutes. The island is associated with a former World War II prison, giving this part of the route a darker historical edge.

You do not have a long shore visit here. The value is seeing the island from the water and placing it within the wider route along the Herceg Novi Riviera and the Lustica Peninsula. The boat passes through the Verige Strait area and continues beyond the inner bay toward the open sea.

This section is where the speedboat matters most. You get broad coastal views and the sense that the Bay of Kotor opens into a much larger stretch of water. The ride can be exciting, but it may also be choppy. If you are sensitive to motion, sit where the skipper recommends and keep water nearby.

The tour is built around views rather than lengthy stops. You will see several notable places, but you will not have time to wander around Mamula Island or explore the coast on foot. That tradeoff is fair for a three-hour excursion, as long as you choose it for variety and scenery rather than detailed visits.

Swimming in Montenegro’s Blue Cave

The Blue Cave is the main nature stop, with around 20 minutes set aside for swimming. Sunlight enters through the cave opening and reflects through the water, creating the blue color that gives the cave its name.

The exact experience depends heavily on the sea. In calm conditions, you can swim in the cave and use the provided snorkel mask to look below the surface. Water is included, and safety equipment is provided. The skipper takes care during boarding and getting in and out of the water, an important detail on a moving boat and rocky shoreline.

You should bring swimwear, a towel, sunscreen, and sunglasses. It is also wise to bring a warmer layer in spring and autumn. The ride can feel chilly even when the day is sunny, and the boat’s speed creates its own wind.

The Blue Cave is not guaranteed. Rough seas or difficult weather can lead to a change in the route or cancellation of the swim stop. This is not a minor technical detail. If swimming in the cave is the one thing you care about most, book with a flexible attitude and avoid treating it as certain.

I like that the stop is long enough for a proper swim rather than a rushed dip. Still, 20 minutes goes quickly once you account for instructions, entering the water, and getting dry. You will not have a full beach afternoon here.

The 70-minute ride back to Kotor

The return to Marina Kotor takes about 70 minutes, making it the longest single leg of the tour. After the Blue Cave, the boat retraces the coast and returns through the bay.

For me, this is both a strength and a weakness. You have time to sit back and look at the coastline from the water, and the changing views help complete the picture of the bay. But if you prefer constant stops, the final ride may feel long after the swim.

The total route is carefully timed:

• About 20 minutes from Marina Kotor toward Perast
• About 3 minutes passing Perast for views and photographs
• About 20 minutes at Our Lady of the Rocks
• About 5 minutes at the submarine tunnel
• About 5 minutes viewing Mamula Island
• About 20 minutes swimming at the Blue Cave
• About 70 minutes returning to Kotor

The times are approximate, and weather can change the order or remove a stop. One useful caution is that commentary may be limited on some departures. Some passengers receive a pleasant, relaxed explanation from the skipper, while others may find there is little narration. If you want a detailed lecture at every site, ask about the guide and commentary before boarding.

What the $55 price really includes

At $55 per person, this is a reasonable price for a three-hour small-group boat trip covering several distant sites. The value comes from the speedboat, the number of stops, the Blue Cave swim, and the included safety equipment and snorkel mask.

You also get a professional guide, water, the boat trip, and hotel pickup and drop-off as listed. The main extra cost is the €2 museum entrance at Our Lady of the Rocks. The church visit itself is subject to opening hours and its own entrance arrangements.

The price is strongest for people who want to see a lot in one half-day without organizing several separate boat rides. It is less compelling if you want long visits at each place, detailed historical talks, or a guaranteed Blue Cave swim.

The small group matters here. With up to 10 people, boarding and getting off should be easier than on a large vessel, and the skipper can pay closer attention during the swim stop. That does not turn the trip into a private charter, but it gives the outing a more relaxed feel.

Who will enjoy this tour most

I would choose this trip if you have limited time in Kotor and want a broad sample of the bay. It works well for people who like mixing church architecture, military sites, coastal views, and swimming in the same outing.

It also suits confident swimmers and anyone comfortable with a fast boat. Families and couples may appreciate the compact schedule, though wheelchair users cannot take part. The tour requires moving around a boat and entering or leaving at several stops.

You may want a different option if you dislike wind, spray, or choppy water. You should also think twice if the Blue Cave is your sole reason for booking. Conditions can force the skipper to skip it, and the operator puts safety first.

Spring and autumn require extra planning. The church and museum close earlier, and the air can feel cool on the boat. In July and August, the island sights stay open later, but Kotor also becomes harder to park in and busier around the marina.

Booking advice and final verdict

I would book this tour for the range of experiences rather than for one perfect stop. In three hours, you get Our Lady of the Rocks, a submarine tunnel, Mamula Island, and the Blue Cave, with enough open-water riding to understand the shape of the bay.

The tour is a good value at $55, especially for a small group with water, safety equipment, a snorkel mask, and a professional guide included. Just keep your expectations practical: the stops are short, the return ride is long, commentary may vary, and the Blue Cave depends on the sea.

Book it if you want an active, efficient introduction to Boka Bay and are happy to trade depth for variety. Skip it if you need guaranteed swimming, wheelchair access, or a slow, highly detailed historical tour.

FAQ

Where does the tour start?

The tour starts at Marina Kotor, across the main road from the Main Gate of Kotor’s Old Town. Look for the tour desk and Kristina at the marina.

How early should I arrive?

You should arrive at least 15 minutes before departure.

How long does the tour last?

The advertised duration is three hours, though weather and sea conditions may affect the timing.

What languages are available?

The live guide service is available in English and Serbo-Croatian.

How many people are in the group?

The group is limited to 10 participants.

Is swimming in the Blue Cave guaranteed?

No. Rough sea conditions or bad weather can require the skipper to skip the Blue Cave for safety and comfort.

Is the snorkel mask included?

Yes. A snorkel mask, safety equipment, and water are included.

Is the museum at Our Lady of the Rocks included?

No. Museum admission costs €2. The skip-the-line arrangement does not apply to entry at Our Lady of the Rocks.

What should I bring?

Bring a passport or ID card, sunglasses, swimwear, a towel, and sunscreen. A warmer layer is recommended in spring and autumn.

Can wheelchair users join the tour?

No. This activity is not suitable for wheelchair users.