Review · BLUE CAVE & GROTTO TOURS
Speedboat Tour to Lady of the Rock, Mamula and Blue Cave Swim
Three hours, four striking sights, one very fast boat. This Kotor excursion packs the Bay of Kotor, Our Lady of the Rocks, a former submarine tunnel, Mamula Fortress, and a Blue Cave swim into one energetic morning or afternoon. I especially like the chance to see so much coastline in a short time, and the swim stop gives the trip a welcome break from sightseeing.
The small group size of up to 12 people also helps. You get open views from the boat without the feel of a large harbor cruise. The main drawback is the pace: much of the three hours is spent moving between stops, and the ride can become quite bumpy once the boat reaches open water.
Key points to know before booking
- Our Lady of the Rocks includes a short island visit: You have about 20 minutes on the island, but church and museum admission costs extra.
- The speedboat is part of the attraction: Expect a lively ride, sea spray, wind, and rougher water beyond the sheltered bay.
- The Blue Cave stop is flexible: Swimming is planned for about 30 minutes, but crowds and sea conditions can change where you swim.
- The former submarine tunnel is a quick stop: You enter for roughly five minutes, so this is more of a striking photo and history stop than a long visit.
- Pickup details need attention: The main meeting point is Park Slobode in Kotor, and pickup is limited to locations within 4 kilometers.
- The price is strong for a short outing: At about $52 per person, you get transport by speedboat, a drink, WiFi, snorkeling equipment, and several major sights.
Why this boat trip works well in Kotor

Kotor is easy to admire from its stone lanes, but the bay makes more sense from the water. From a speedboat, you see the old waterfront, grand houses, church towers, steep mountain walls, small fishing settlements, and the changing shape of the coast in one sweep.
This trip is aimed at people who want the highlights without spending a full day at sea. The route lasts about three hours, including travel time, so it fits neatly into a short stay in Kotor or a cruise stop. You will not have long, leisurely visits at every site. Instead, you get a fast introduction, a few historic stops, and time to swim.
The operator limits the boat to 12 people, though the group may often be around 10. That is a useful middle ground. It is more personal than a large sightseeing boat, but it is not a private charter. If you want quiet time, long stops, or a custom route, you would need to pay more for a private boat.
The captains are a major part of the experience. Milos is praised for lively commentary, music, and an easy way with a group. Milo, Milos, Peter, and Eli are all named by people who had particularly good outings. The quality can depend on who is driving that day, so the guide matters more here than on a simple ferry ride.
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Starting at Park Slobode and leaving Kotor

The advertised starting point is Park Slobode, marked as CQG9+H6W in Kotor. Pickup may also be arranged along the waterfront, but it must be at a place accessible by boat and within 4 kilometers of Kotor.
Allow extra time to find the exact meeting point. One person missed the departure after receiving unclear directions from near the port. That is a preventable problem, especially if you are arriving from a cruise ship or walking from the Old Town. Contact the operator before departure, check the pickup instructions, and do not assume the boat will be waiting directly at your ship.
Once aboard, the first stretch takes about 20 minutes. This is not wasted time. The boat passes the handsome waterfront of Kotor and the older settlements around the bay. Look for former palaces and mansions built in Baroque and Renaissance styles, small harbors, old mills, and the river outlet near the coast.
The ride is quick and open to the wind. Bring sun protection, secure loose belongings, and keep your phone in a waterproof pouch if you plan to take pictures. One person even left a wallet at a stop, though the crew helped recover it. That is a good reminder to check your seat and bag every time you return to the boat.
Our Lady of the Rocks and Perast

Our Lady of the Rocks is the first major stop, reached after about 20 minutes. The island is artificial, built over centuries by placing rocks in the water and sinking old ships loaded with stone. The island’s church is the largest structure there, and a museum sits behind it.
You get about 20 minutes on the island. That is enough to walk around, look at the church exterior, visit the gift shop, and take photographs from the shoreline. If you pay to enter, the church costs about €3. Museum and church admission are not included in the tour price, so carry some cash if you want to go inside.
The island is tied closely to nearby Perast, a beautiful old settlement protected by UNESCO. The skipper explains the connection and the island’s creation during the visit. The setting is the real draw: pale stone, clear water, mountain walls, and the small island church make this one of the most memorable views in the bay.
The limitation is time. If you want to study the church art, spend time in the museum, or explore Perast itself, 20 minutes will feel short. This tour does not include a proper stop in Perast, only an explanation while you are near the island. I would treat this as a compact introduction, not a substitute for a separate visit.
Through Verige Strait toward Tivat Bay

After Our Lady of the Rocks, the boat continues toward the narrow Verige Strait. The route enters Tivat Bay, where you can see Porto Montenegro, the luxury marina, off to the left.
This part is especially good for broad views. The change from the enclosed inner bay to the wider water around Tivat helps you understand the shape of the coast. The boat also gives you a closer look at how old stone settlements and modern yacht facilities share the same shoreline.
The next stop is the former Yugoslav submarine tunnel. The entrance was covered with artificial rock so it would be harder for satellites or aircraft to detect. The boat enters the tunnel for about five minutes.
It is a short visit, but the setting is unusual. You are not simply looking at another church or viewpoint. You are seeing a piece of military infrastructure built into the coast, with a purpose that makes the plain-looking opening more interesting.
Do not expect a long historical talk or a walk through a large underground complex. The boat goes inside, pauses briefly, and comes back out. Commentary also varies by captain. Some guides give detailed information about who built it, why it was concealed, and how long it is. Others may offer only a few sentences. If the military history interests you, ask questions while you are inside.
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Mamula Fortress from the water

The boat then heads toward Mamula Fortress, usually a 15-minute cruise from the tunnel area. The fortress sits on an island at the entrance to the Bay of Kotor and was used for military purposes during the First and Second World Wars.
The fortress is currently closed to visitors because of construction, so this is a sightseeing stop from the water. The captain explains its purpose and points out the structure as the boat passes.
This is one of the less active sections of the trip. You do not get off the boat, and there is no long walk around the walls. Still, seeing the fortress from the water gives you a sense of its defensive position. The stop works best as part of the wider coastal route rather than as a stand-alone attraction.
If your main goal is to explore fortresses on foot, this tour will not meet that need. The value here is the view, the short explanation, and the chance to see a closed site that is not normally available for an ordinary land visit.
The Blue Cave and the swimming break

The Blue Cave is the trip’s main reward for many people. The cave was formed by waves working into the base of cliffs more than 100 meters high. Sunlight entering through the water creates the blue color that gives the cave its name.
The boat takes you toward the cave, and the planned visit lasts about 30 minutes. You can jump from the boat and swim, and snorkeling equipment is supposed to be included. The water stop breaks up the sightseeing and gives you a chance to cool off after sitting in the sun.
Conditions matter here. The cave can become crowded with several boats, and the water may be too busy for a comfortable swim. On one outing, the captain chose another nearby swim spot because the cave itself was not safe at that moment. That kind of decision is a good sign. A responsible skipper should place safety before sticking rigidly to the advertised location.
The Blue Cave can also be a very quick visit if boat traffic is heavy. One poor outing included only a brief look inside, with the actual swimming done beside another cave. That does not mean every departure will be the same, but it shows why you should view the cave visit as weather and crowd dependent.
Bring your own towel. Towels are not included. The boat provides snorkeling gear, but because equipment was not offered on at least one departure, it is sensible to confirm this before setting out. The included drink may be beer, water, or a soft drink. Cold drinks are normally part of the experience, though one outing had a warm can of cola.
The ride back to Kotor

The return to Park Slobode takes about 55 minutes. This is the longest single stretch of the excursion, and it can feel very different depending on the sea.
Inside the bay, the ride may be smooth. Beyond the land that shelters Kotor, the speedboat can hit choppy water. Several people enjoyed the spray and fast pace, while another found the ride uncomfortable and stressed the need for a boat suited to rougher conditions.
If you get motion sickness, think carefully before booking. This is not a slow cruise. The speed and open water are central to the appeal, but they are also the main source of discomfort. Sit where you can hold on securely, follow the captain’s instructions, and avoid bringing delicate electronics without protection.
The return leg is also another chance to see Kotor from the water. The bay’s mountain walls look different as you approach the city, and the final stretch offers good photo opportunities if the light is favorable.
What the $52 price really includes

At about $52 per person, this is a good-value short excursion if you want several sights in one outing. You are paying for a speedboat ride, a small group, a guide, a drink, WiFi on board, snorkeling equipment, and access to the water at the Blue Cave.
The price compares well with the cost of arranging separate boat transport to Our Lady of the Rocks, the submarine tunnel area, and the Blue Cave. It also saves you from working out a route across several parts of the bay.
The price does not cover church or museum entry at Our Lady of the Rocks, and there is no lunch. That matters if you expect a full-day coastal cruise. This is a compact sightseeing and swimming trip, not a meal-based excursion.
The strongest value comes when you are short on time. In three hours, you see the bay, an artificial island, a military tunnel, a fortress, and a cave. The weaker value comes if you prefer long stops and detailed guiding. A private boat would offer more comfort, more space, and more control, but it would cost more.
Who should book this tour?
I would recommend it to you if you want a fast, scenic introduction to the Bay of Kotor and enjoy being on the water. It suits couples, friends, solo visitors, and cruise passengers who want an active shore excursion rather than a bus tour.
It is also a good fit for swimmers and photographers. The Blue Cave and the ride itself provide the most memorable moments, while the historic stops add variety.
I would be more cautious if you dislike rough water, need extensive commentary, or want to explore each site at your own pace. The tour is efficient, but efficiency means short visits. The guide quality can also vary, although captains such as Milos have earned strong praise for humor, music, and clear explanations.
The tour has a 4.8 rating from 132 reviews, with 94 percent recommending it. Those figures suggest a strong overall experience, but they do not remove the practical concerns about sea conditions, pickup directions, short stops, and occasional inconsistencies with drinks or snorkeling gear.
FAQ
Where does the tour start and finish?
The tour starts at Park Slobode in Kotor, Montenegro, and returns to the same meeting point.
Is pickup available?
Pickup is offered along the waterfront at boat-accessible locations within 4 kilometers of Kotor. Locations outside that area are not included unless confirmed with the operator before booking.
How long does the tour last?
The tour lasts approximately three hours, including travel time between Kotor, the stops, and the return to the meeting point.
Are church and museum tickets included?
No. Entry to the church and the museum at Our Lady of the Rocks is not included. Church entry is about €3.
Is swimming equipment provided?
Snorkeling equipment is included without an additional charge. Towels are not provided.
What happens if the weather is poor?
The tour requires good weather. If poor weather causes cancellation, you can choose another date or receive a full refund. You can cancel for a full refund up to 24 hours before the start time.
Should you book it?
Book this tour if you want maximum scenery in a short time, enjoy a fast boat, and like the idea of finishing with a swim. The Blue Cave, the unusual submarine tunnel, and the views around Kotor make this more than a simple harbor ride.
Skip it if you want a slow, detailed cultural tour, a guaranteed long swim in the cave, or a quiet boat. For most active visitors with only a morning or afternoon available, $52 is a fair price for the route. Just confirm the pickup point, bring a towel, protect your valuables, and expect the sea to set the pace.
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