Blue cave, Mamula island, Submarine tunnels and Our lady of the Rocks (3h)

The Adriatic puts on quite a show here. This three-hour speedboat trip gives you a fast, scenic look at Kotor Bay, the Blue Cave, Mamula Island, old submarine tunnels, and Our Lady of the Rocks for $42.41 per person. I like the excellent value and the chance to swim near the cave, while the captain-led commentary adds useful context as you move between stops.

I also like how much ground you cover in a short time. The coast, villages, fortifications, islands, and open sea all appear in one outing. The main drawback is the long ride to the Blue Cave, roughly 50 minutes to 1 hour and 10 minutes depending on conditions, and the water can become rough. This is a lively boat ride, not a slow sightseeing cruise.

Key things to know before booking

• The Blue Cave is the main event: You get time to enter the cave by boat, take photos, and swim nearby when conditions allow.
• It is a fast three-hour outing: You see several major sights, but stops are brief and the ride between them takes a large share of the time.
• The boat ride can be bumpy: The front seats feel the waves most, especially on the open water beyond Kotor Bay.
• Our Lady of the Rocks costs extra: The church entrance fee is €1.50 per person, and the tour price does not include food or drinks.
• Small groups keep things manageable: The maximum group size is 20, though some departures operate with fewer people.
• The tour returns to Kotor: You start and finish at the meeting point near CQG9+H6W in Kotor.

Why this Kotor boat trip is worth considering

Kotor Bay is best understood from the water. From a speedboat, you see the shore open up into a series of small settlements, wooded slopes, stone buildings, and old defensive sites. The route gives you a sense of how the bay connects Kotor with Perast, Herceg Novi, the Luštica Peninsula, and the Adriatic beyond.

For $42.41, this is a strong deal if you want several sights in one session. A private boat outing would cost much more, while a slower boat trip may not reach the Blue Cave or the outer bay in the same amount of time. You are paying for speed, variety, and the chance to swim, rather than for long guided visits at each stop.

The score of 4.8 from 575 ratings, with 96 percent recommending the experience, reflects what this trip does best: it packs in scenery and fun without taking up a full day. Still, the high rating should not make you expect a quiet or leisurely trip. The boat moves quickly, music may be played, and time at the most popular sites can be limited by other boats and sea conditions.

Your skipper is an important part of the experience. Several departures have featured friendly captains who explain the sights, help with photos, adjust the route when weather changes, and handle the speedboat smoothly. One skipper even supplied rain gear when the weather turned wet. The quality of spoken explanations can vary, so you should think of the commentary as a useful bonus rather than a full historical tour.

Leaving Kotor Bay for the Blue Cave

The trip begins with a long run along the Bay of Kotor. The official timing allows about 1 hour and 10 minutes before reaching the Blue Cave, although some people experience closer to 50 minutes depending on the route and conditions.

This opening ride is not empty travel time. You pass old fishing villages, thick vegetation, mountain-backed shores, and a mixture of traditional and defensive architecture. The views are one of the strongest reasons to book the tour. You get a broad look at the bay instead of seeing only the streets around Kotor’s old town.

The speedboat makes the distance practical. A slower craft could turn this into a much longer outing, but the speed also creates a rougher ride. If you sit at the front, expect more bouncing over the wake. Several people enjoyed the motion, while others found the ride uncomfortable when the sea became choppy.

If you are prone to seasickness, choose a central seat when possible and keep your eyes toward the horizon. The boat may feel smooth inside the protected bay, then noticeably rougher once it reaches more open water. The captain’s handling makes a difference, but no skipper can remove the waves.

The trip is offered in English and includes bottled water. Food and other drinks are not included, so bring anything else you need within the tour’s rules. Since the entire experience lasts only about three hours, there is no meal stop built into the plan.

Entering the Blue Cave by boat

The Blue Cave is the centerpiece of the trip. Its two entrances give it an unusual shape: one is broad but low, while the other is narrower and tall. The boat enters through the opening conditions allow, giving you the chance to see the blue water and rock walls from inside.

You have about 20 minutes at the cave. That is enough for photographs and a quick look, but not enough for a long, private visit. Boat traffic can be heavy, and other vessels may be maneuvering nearby. At busy times, you may spend only a short period inside before the boat moves on.

The color is strongest when sunlight reaches the water at the right angle. Weather and the position of the sun affect what you see, so the cave will not look exactly the same on every departure. Even on a gray day, the setting remains striking, but the famous glowing blue effect may be less intense.

Swimming is often part of the experience, usually in a nearby cove rather than directly inside the cave. You may be invited to swim from the boat, and some departures provide time for a refreshing stop near the cave. Be aware that the water can be deep, and there may not be a beach, ladder-side platform, or floating support nearby.

This matters if you are not a confident swimmer or if you are traveling with children. Bring your own flotation aid if you need one, since the supplied information does not promise flotation equipment for recreational swimming. Ask the skipper clearly about the swimming arrangements before entering the water.

Getting back onto a speedboat can also take effort. A ladder is used, and one person found it difficult to climb aboard after swimming without assistance. If you need help, ask before leaving the boat and make your needs clear to the crew.

Mamula Island and the old submarine tunnels

Mamula, also known as Lastavica, is an uninhabited circular islet at the entrance to Boka Kotorska. It lies between the Prevlaka and Luštica peninsulas, about 6.3 kilometers from Herceg Novi, and measures roughly 200 meters across.

The island’s appeal comes from its position and military past. Its round form and fortifications give it a stark appearance against the sea. The tour lets you see this isolated site as part of the wider route, adding a layer of history to what could otherwise be just a scenic speedboat ride.

The old submarine tunnels are another memorable part of the route. These concealed openings in the shore were built to shelter submarines, and the boat passes close enough for you to appreciate their purpose and setting. The visit is brief, so you should not expect an extended walk through the tunnels. The value is in seeing how the coastline was used for military protection.

These stops are especially useful for you if you enjoy a mix of scenery and historical sites. The tour does not focus on one monument in detail, but it gives you a quick visual introduction to several places that would be hard to combine independently in only three hours.

A short visit to Our Lady of the Rocks

Our Lady of the Rocks sits offshore from Perast and is one of two small islands in that part of the bay. Unlike a natural island, it was built up over time by placing rocks in the sea and sinking old ships loaded with stones.

The island’s Roman Catholic church is the main sight. A small museum is attached, and there is also a gift shop and navigation light. You get about 20 minutes here, so plan your time before stepping ashore.

Admission to the church costs €1.50 and is not included in the tour price. If you want only to look around the island and take photographs, you can keep your visit short. If you want to enter the church and museum, have euros ready and remember that 20 minutes is a tight window.

This stop gives the tour a useful change of pace. After the speed and spray of the Blue Cave run, you get a chance to walk on solid ground and see a distinctly human-made site. The island is small, so the visit works best when you focus on the church, the surrounding water, and the view back toward Perast.

What the three-hour schedule feels like

The schedule is packed. You spend a large portion of the outing moving between sites, then make short stops at the Blue Cave and Our Lady of the Rocks. Mamula and the submarine tunnels add more sights, but the exact time spent at those locations is not specified.

That pace will suit you if you want a broad introduction to the bay and dislike spending a whole day on one activity. Families with older children and teenagers may appreciate the speed, swimming opportunity, and changing scenery. Several people found that the three hours passed quickly.

It is less suitable if you want long swims, quiet photography, or detailed guided visits. The Blue Cave can be crowded with boats, and you may have only a couple of minutes inside during a busy departure. The tour’s strength is variety, not extended time at any one site.

Music may be played during the ride. Some people enjoy the lively atmosphere, while others prefer a quieter trip. The experience is generally described as safe and well organized, but the standard can vary between individual captains. Most commentary is in English, though one person found the explanations too fast or difficult to understand.

Price, group size, and practical value

At $42.41 per person, the tour offers good value for a speedboat outing that reaches the outer bay and includes multiple major sights. Bottled water is included, but food, drinks, and the €1.50 church fee are extra.

The group limit is 20 people. Smaller departures can feel more personal and make it easier to ask questions or get help with photographs. On some boats, groups of roughly eight to thirteen people have been reported, but you should plan for the stated maximum rather than assume a small private group.

The meeting point is CQG9+H6W in Kotor, and the tour ends there. It is near public transportation and close to the cruise tender area, though finding the precise pickup spot can be slightly tricky. If you are arriving from a cruise ship, allow enough time to walk from the tender landing and locate the boat without rushing.

This experience requires good weather. If poor conditions cancel the outing, you are offered another date or a full refund. You can also cancel for a full refund up to 24 hours before the start time. The tour requires a minimum number of participants, so a cancellation for that reason also brings the choice of another date, another experience, or a refund.

The tour is often booked about 21 days ahead. That is a useful signal for planning, especially if you are visiting Kotor on a cruise date or during a busy summer period.

What to bring and how to prepare

Keep your packing simple, but prepare for both sun and spray. A swimsuit, towel, sunscreen, and a waterproof way to protect your phone will be useful if swimming is offered.

Wear shoes that are easy to remove and put back on. You may step ashore at Our Lady of the Rocks, then return to the boat and possibly use a ladder after swimming. If you need help boarding, tell the crew before you enter the water.

A light rain layer is sensible, even in good weather. One departure supplied rain gear when conditions changed, but you should not rely on every boat having spare clothing for everyone.

For the best ride, I would choose a middle seat rather than the very front if you want less bouncing. Sit forward only if you enjoy the full speedboat effect and do not mind a rougher ride.

Who should book this tour?

I would choose this trip if you have only a short time in Kotor and want to combine natural sights, military history, island scenery, and a church visit. It is also a good fit for families with teenagers, couples who enjoy active outings, and cruise passengers who need a tour that returns to the starting point after three hours.

I would be more cautious if you have limited mobility, dislike climbing boat ladders, are uncomfortable in deep water, or get seasick easily. Most people can participate, but swimming from a boat and boarding a speedboat require some physical confidence.

You should also manage your expectations about the Blue Cave. It is beautiful, but it is not a private visit. Boat traffic, wind, waves, and sunlight all affect the experience. The cave is one part of a larger coastal tour, not the entire reason to go.

Should you book the Blue Cave and Mamula tour?

Book it if you want maximum variety in three hours and enjoy a fast ride with changing views. The price is fair, the route covers several worthwhile places, and the Blue Cave swimming stop can be the highlight of your Kotor visit.

Skip it if you want a calm boat journey, long time at each site, or guaranteed beach swimming. For most active visitors, though, this is an efficient and enjoyable way to see more of Montenegro’s coast without committing to a full-day excursion.

FAQ

How long does the tour last?

The tour lasts approximately three hours and returns to the meeting point in Kotor.

Where does the tour start?

It starts at CQG9+H6W in Kotor, Montenegro.

Does the tour return to Kotor?

Yes. The activity ends back at the meeting point.

What language is offered?

The tour is offered in English.

Is the Blue Cave entrance included?

Yes. The Blue Cave is reached by boat, and no separate admission fee is listed.

Can you swim during the tour?

Swimming may be offered near the Blue Cave, depending on conditions and the skipper’s arrangements. The supplied details do not guarantee a beach swim.

Is swimming equipment included?

No swimming equipment is listed as included. Bottled water is included.

How much does it cost to enter Our Lady of the Rocks church?

The church entrance fee is €1.50 per person and is not included in the tour price.

How many people can join the tour?

The maximum group size is 20 people.

Can you cancel for a refund?

Yes. You can cancel at least 24 hours before the start time for a full refund. Poor weather or failure to meet the minimum number of participants may also result in another date or a full refund.