Kotor: Swim in the Blue Cave + Lady of the Rocks Tour

The Blue Cave swim is the headline here, but the old submarine tunnel may be the tour’s best surprise. You race from Kotor across Boka Bay, stop at the island church of Our Lady of the Rocks, pass Mamula, and squeeze a lot into three hours.

I like the efficient route and the friendly, funny captains. I also like the small speedboat, which can reach places larger boats cannot. The catch is simple: this is a brisk ride, and the 20-minute island visit and short swim stop may feel too brief if you prefer a slow pace.

Key points at a glance

• Blue Cave swim: A roughly 20-minute stop for swimming in vivid blue water, weather and sea conditions permitting.
• Submarine tunnel: Enter a former military shelter for a cinematic five-minute photo stop.
• Our Lady of the Rocks: Visit the artificial island near Perast, with optional church and museum entry for €3 in cash.
• Fast Boka Bay route: See Perast, the Verige Strait, Mamula Island, and the Luštica Peninsula without giving up a full day.
• Good onboard basics: Water, Wi-Fi, safety equipment, some snorkeling masks, and a waterproof phone case may be available.
• Important comfort note: The speedboat can bounce on choppy water, so this is not a good choice if you have back trouble.

What This Three-Hour Kotor Boat Tour Really Delivers

At $53 per person, this is a compact sightseeing and swimming trip rather than a leisurely cruise. You get four distinct experiences: a cultural stop, a military-history stop, a scenic pass by Mamula Island, and time in the sea near the Blue Cave.

That combination gives the tour strong value if your time in Kotor is limited. You do not need to arrange separate transport to Perast or book a second boat for the outer bay. The skipper handles the route while you take in the cliffs, islands, and water-level views of the UNESCO-listed Bay of Kotor area.

The trade-off is pace. The boat spends much of the three hours moving between stops, and that is part of the fun. You will feel the speed, the spray, and the wind. If you want long explanations or a quiet afternoon on the water, choose a slower boat trip instead.

The boat is described as comfortable and cushioned, with room arranged so it does not feel packed on every departure. Still, comfort depends on the sea. A calm morning can feel smooth, while wind and swell can make the ride lively. Bring a light jacket even in warm weather, especially in spring and autumn.

Starting at City Park, Just Outside Kotor’s Old Town

The meeting point is City Park at Park Slobode 1, about 200 meters from the Old Town’s Main Gate and a short walk from Kotor’s port. That location works well if you are staying in town or arriving by cruise ship.

From a cruise ship, leave the vessel and pass through security. Turn left, then turn left again at the small bridge toward the park. Near the waterfront, look for the information desk where the skipper and a staff member wait.

Arrive at least 30 minutes early. This matters most on a cruise day, when getting off the ship and crossing the port area can take longer than expected. The operator may help place you on the next available departure if you miss the scheduled boat, but you should not treat that as guaranteed space.

Driving requires more patience. Summer parking near the park is limited, and traffic and roadworks can slow the main road. The paid Benovo parking area has been useful for some families, but allow extra time and do not aim to arrive at the last minute.

Large bags and luggage are not allowed on the boat. Pack only what you need for three hours: swimsuit, towel, sunscreen, a cover-up, sunglasses, hat, phone, and some cash.

Speeding Past Perast to Our Lady of the Rocks

The first major stop is Our Lady of the Rocks, the famous artificial island near Perast. The ride from Kotor takes about 20 minutes, with Perast viewed from the water before you step ashore.

The island is small and highly photogenic. The church rises above the water with the mountains behind it, and the boat approach gives you a better sense of how unusual the setting is than a land visit alone. This is one of those places where the water-level view does much of the work.

The local story adds meaning. Two brothers are said to have found a Madonna and Child icon on a rock in the bay. Over time, people built up the artificial island and the church on that spot. Your skipper or the QR-code audio material can help explain the tradition, depending on how the tour is run that day.

You have about 20 minutes on the island. That is enough to walk around, take pictures, and look inside if the church is open. It is not enough for a long, unhurried visit, especially if you want to see the museum too. Some people would happily trade a few minutes of boat time for a longer stay here.

Church and museum admission is optional and not included. The museum ticket is listed at €3, cash only. Opening times change with the season: typically until 17:00 in April, May, September, and October, until 18:00 in June, and until 19:00 in July and August. The island itself remains visitable if the building is closed.

Wear a cover-up if you plan to enter. Swimwear is not suitable inside the church, even on a hot day.

The Verige Strait and Boka Bay From the Water

After the island, the boat threads through the bay and heads toward the outer waters. The route includes the narrow Verige Strait, a memorable section where the mountains appear to close around the water.

This is where the speedboat earns its place. From a road, you see fragments of the bay. From the water, you watch the shoreline shift continuously, with old settlements, steep slopes, and small waterfront structures passing at eye level.

The ride is scenic, but it is not a narrated sightseeing bus. Commentary comes from the English-speaking skipper, with extra written local information available through a QR code. An audio guide may be available in English, German, Serbo-Croatian, and Russian, but you need a smartphone and an internet connection to use it.

The captains are a major part of the experience. The crew roster can vary, but names attached to recent departures include Marco, Egi, and Eno. Expect a relaxed style, local suggestions, humor, and explanations of the places along the route rather than a long formal lecture.

Music is also part of the mood on some departures. One boat used the James Bond theme near the military tunnel and Mamula Island, a playful touch that fits the film-like setting. If you prefer silence, keep in mind that the atmosphere can be lively rather than purely contemplative.

The Former Submarine Tunnel: Five Minutes of Secret History

The former submarine tunnel is the tour’s most distinctive stop. Cut into the coastline, these narrow shelters were once used to hide military vessels. The boat enters the tunnel, giving you a short look at a part of the bay that is easy to miss from standard sightseeing routes.

The stop lasts about five minutes, so think of it as an atmospheric photo and history pause rather than a full museum visit. The dark opening, rough walls, and boat maneuvering create a dramatic contrast with the bright open water outside.

This is also a good example of why a small boat matters. The speedboat can take you inside a confined space that larger sightseeing vessels cannot easily reach. The skipper’s handling is important here, especially when the water is busy or the approach is tight.

There may be limited time to explain the military background in detail. If the tunnel interests you, listen closely and use the written information afterward. The stop is short, but it adds a sense of place that a simple beach-and-church itinerary would lack.

Mamula Island and the Outer Bay

The boat passes Mamula Island after the submarine tunnel, usually allowing about five minutes for a photo stop and scenic look. Its fortress gives the island a strong visual identity, and the guide may explain its use as a prison.

You will not get a long shore visit here. The point is the view from the boat, the fortress silhouette, and the position of the island at the mouth of the bay. It connects the inner fjord-like waters of Boka Bay with the more open coastal setting beyond.

The short stop can feel frustrating if you want to explore the fort. On the other hand, it helps keep the tour within three hours and leaves time for the Blue Cave. The route is designed around seeing several places, not staying at one.

Keep your camera ready. The boat may pause only briefly, and the best angle can disappear quickly as the captain turns toward the next stop.

Swimming Near the Blue Cave

The Blue Cave is the moment most people anticipate. The water takes on a striking blue color when light enters through the cave opening, creating the effect that gives the place its name.

The boat spends about 20 minutes in the area, and you can swim when the weather and sea conditions allow. Some departures enter the cave, while others stop in a sheltered area outside it. That distinction matters. Strong wind, swell, tide, or boat traffic can make entering or swimming inside unsafe.

Do not book this tour on the assumption that the swim is guaranteed. The operator may cancel the Blue Cave portion or change the route if conditions are poor. That is disappointing if swimming is your main goal, but it is the sensible safety choice.

The water can be clear enough to see fish, and snorkeling masks may be available. Bring your own goggles if swimming is important to you, since the supplied masks are subject to availability. A towel is essential, though you may remain in wet swimwear for the ride back because there is no mention of a changing room.

A waterproof phone case may be available for use, but it must be returned. Bring a secure strap or keep your phone in a safe place when you are not taking pictures. The operator supplies life jackets, including child sizes on request, and carries a first-aid kit.

The swim stop is short. You have time for a refreshing jump from the boat and a look around, but not a long snorkel session. A few people may find the cave area crowded with boats in high season. The speedboat helps by reaching smaller spaces, but it cannot remove the summer traffic.

How Comfortable Is the Speedboat?

The boat is clean, cushioned, and fast, which makes it a good match for a three-hour route with distant stops. The stern, near the swimming platform, can offer excellent views and easy access to the water. It may also be the liveliest place when the boat accelerates.

A fast boat is useful in Kotor Bay because the Blue Cave and Luštica Peninsula are far beyond the Old Town. You spend less time plodding across the water and more time at the key stops. The cost is a firmer ride, especially when the sea is choppy.

If you have back problems, are pregnant, use a wheelchair, or have limited mobility, this activity is not suitable. One important point from the practical side: when the boat hits larger waves, it can bounce. Sit where the crew advises, hold on when moving, and do not expect the ride to feel like a large ferry.

Children can take part, and child-size life jackets are available on request. A family with young children found the three-hour format easier than committing to a full-day boat trip. You can ask about bringing a foldable stroller, but it cannot be used normally on the boat and large bags are not allowed.

Is $53 Good Value for Kotor?

At $53, the tour offers good value if you want a concentrated look at the bay. Fuel, insurance, a licensed skipper and crew, drinking water, safety equipment, Wi-Fi, and the main island visit are included. You also get transport to places that would be awkward to reach independently in only half a day.

The price does not include the €3 church and museum ticket, hotel pickup, or food. There are no substantial refreshments listed, so eat before departure and bring water if you want more than the supplied bottle.

I see the value in the route rather than in luxury extras. You are paying for a capable boat, a guide, fuel, and access to several far-flung sights. If you booked separate transport to Perast and a second boat to the outer bay, you would likely spend more time coordinating and more money overall.

The value drops if the Blue Cave is your only reason for booking and weather cancels that stop. The tour still includes the island, tunnel, Mamula, and bay scenery, but you should decide if those alone justify the price.

Timing, Weather, and the Best Way to Prepare

Morning departures can be a smart choice. The bay may be less crowded, and an earlier start leaves some flexibility if the operator needs to adjust the route later in the day. Starting times vary, so check availability when booking.

Sea conditions matter more than the calendar. Wind and swell can make the ride rough, prevent entry into the Blue Cave, or lead to a changed itinerary. The tour can be canceled or rescheduled when conditions are unsafe, with free cancellation available up to 24 hours in advance under the stated policy.

Pack for both sun and spray:

• Swimsuit and towel
• Sunscreen, sunglasses, and a hat
• Light jacket or warmer layer
• Comfortable shoes and clothing
• Cash for the optional museum
• Smartphone with mobile data or Wi-Fi
• Camera or phone with waterproof protection

Do not bring pets, large bags, luggage, or cigarettes for use inside the vehicle. Check the church schedule if the island interior matters to you, since seasonal hours can change and early closing is possible.

Who Should Book This Kotor Boat Trip?

I would choose this tour if you have one free morning or afternoon and want variety. It suits couples, families with older children, cruise passengers, and first-time visitors who want the classic Kotor Bay sights without spending a full day at sea.

It also fits people who enjoy a little speed and want something beyond postcard views. The submarine tunnel gives the route a more unusual edge, while Mamula adds a military-history note before the relaxed swim stop.

I would not choose it if you want a slow, quiet cruise, a long visit to Our Lady of the Rocks, or a serious snorkeling session. The 20-minute island stop and roughly 20-minute swim are enough for a taste, not a full afternoon.

The trip has earned a very strong overall rating, with particularly high praise for the captains’ humor, care, route knowledge, and boat handling. Safety briefings could be clearer, so ask any questions you have before departure and make sure you know where your life jacket is.

Should You Book It?

Book it if you want Kotor Bay’s greatest hits in three hours, with a genuine swim opportunity and a stop that most ordinary cruises skip. The combination of Our Lady of the Rocks, the submarine tunnel, Mamula Island, and the Blue Cave gives you culture, scenery, military history, and sea time in one outing.

Skip it if you dislike bouncing over waves or need guaranteed cave access. For most able-bodied visitors with limited time, $53 is a fair price for the distance covered and the variety packed into the route. Arrive early, bring a jacket and towel, and treat the Blue Cave as weather-dependent rather than promised.

FAQ

Where does the Kotor Blue Cave tour start?

The tour starts at City Park, Park Slobode 1, about 200 meters from Kotor’s Old Town Main Gate and within walking distance of the port.

How long is the boat tour?

The activity lasts three hours, including the ride from Kotor, the island visit, the submarine tunnel, the Mamula Island pass, and the Blue Cave swimming stop.

Is swimming in the Blue Cave guaranteed?

No. Swimming and entry into the Blue Cave depend on weather, tide, wind, and sea conditions. The route may be changed or the stop canceled if conditions are unsafe.

Is admission to Our Lady of the Rocks included?

The island visit is included, but church and museum admission is optional and costs €3 in cash. Opening hours vary by season and can change.

What languages are available on the tour?

The live guide speaks English. An optional audio guide may be available in English, German, Serbo-Croatian, and Russian. You need a smartphone with internet access to use it.

Is the speedboat suitable for people with mobility or back problems?

No. The activity is not suitable for pregnant women, wheelchair users, people with mobility impairments, or people with back problems. The boat can bounce when the sea is choppy.