From Kotor: Boat to Blue Cave & Lady of the Rocks &Submarine Base

Blue water and old stone make a fine pairing. This three-hour speedboat trip takes you from Kotor to the Blue Cave, Our Lady of the Rocks, Perast, former submarine tunnels, and Mamula Fortress. I like the way it combines swimming with Montenegro’s unusual military and religious landmarks, and I also like the low price of $32.53 per person.

The main caution is that this is a quick, open-water ride, not a slow sightseeing cruise. Boats can feel crowded, the trip can get bumpy, and the Blue Cave may be inaccessible because of weather, waves, water levels, or heavy boat traffic. With a 4.9 rating from 1,104 bookings and 97 percent of people recommending it, the experience clearly works well for many people, but you should know its limits before paying.

Key points before you book

• The Blue Cave is the headline stop: You get about 30 minutes in the area, but actual entry and swimming inside depend on sea conditions and traffic.
• The ride is a real speedboat trip: Expect wind, spray, and a bumpy crossing, especially beyond the sheltered part of the bay.
• You see five very different sights: A sea cave, a church island, Perast, submarine tunnels, and Mamula Fortress give the outing useful variety.
• Swimming may happen outside the cave: Captains sometimes use a nearby swimming spot when entering the cave is unsafe or too crowded.
• Group size can affect comfort: Reported boats carried around 11 to 16 people, and several people found the seating tight.
• Cruise passengers need a generous time buffer: Kotor is a tender port, and the boat leaves on schedule. Missing departure can mean losing the fare.

From Kotor harbor to the open Adriatic

The meeting point is Hawaii Boat Tours Kotor at Park Slobode 1, close to the waterfront. The activity returns to this same place, which keeps the logistics simple. Confirmation arrives when you book, mobile tickets are accepted, and the tour is offered in English.

The advertised duration is about three hours, including travel time. That matters because the Blue Cave is not just around the corner. Several people describe roughly 45 minutes to an hour of travel each way, depending on conditions and the exact route. In other words, part of what you are buying is the exhilarating boat ride itself.

This is not the right choice if you want a quiet, shaded cruise with steady narration. It is better for you if you enjoy speed, sea air, quick stops, and a packed sightseeing schedule. Bring sunscreen, secure loose belongings, and wear clothes that can handle spray. One particularly practical warning from the boat: sit carefully, since the ride can be rough and you may get wet.

The tour is described as English-language, but the amount of live explanation can vary. Some captains provide useful commentary, while others offer only brief remarks or use a recorded guide. If local history is your main reason for booking, keep your expectations modest.

The Blue Cave: beautiful, busy, and weather-dependent

The Blue Cave is the trip’s main prize. Sunlight enters through an opening in the sea, lighting the water with an intense blue glow. The effect is brief but memorable, especially when the boat is inside and the walls reflect the color around you.

The planned stop lasts about 30 minutes, although that does not mean you will spend 30 minutes inside the cave. The entrance opens directly to the sea, so wind, waves, and water level control access. After heavy rain, the water can rise enough to prevent entry. Rough conditions can also make the approach unsafe.

Boat traffic is another issue. During busy periods, several boats may queue outside or enter at once. Some people get only a few minutes inside, and swimming in the cave may not be allowed. That is a disappointment if you picture a long, quiet swim in glowing water.

Captains may instead take you to a nearby swimming spot. This can still be a fine part of the day, with around 10 to 20 minutes in the water for swimming or snorkeling. The tradeoff is that the alternate spot may also have many boats nearby. Pay close attention while snorkeling, and follow the captain’s instructions around moving vessels.

The safest approach is to think of swimming as a bonus, not a guarantee. If the Blue Cave is your only reason for coming, check the weather and sea conditions close to departure. Poor weather can lead to cancellation, in which case the stated policy offers another date or a full refund. If the trip goes ahead but the cave cannot be entered, the experience may continue with an alternate swim stop instead.

Our Lady of the Rocks and the small world of Perast

Our Lady of the Rocks is a man-made island near Perast, built around a Catholic church and tied to local legend. The island is small, photogenic, and easy to visit during a short stop. You get about 20 minutes here, enough to see the church exterior and absorb the setting, but not enough for a relaxed, detailed visit if the area is crowded.

The island’s appeal comes from its setting as much as its buildings. It sits in the bay with mountains rising around it, and the contrast between the stone church, calm water, and steep slopes makes this one of the most recognizable views in the area.

The boat also cruises past or toward Perast, an old settlement with Baroque buildings, palazzos, Catholic churches, and defensive towers. Its single main street gives the place a compact feel. The tour does not appear to offer a long independent visit in Perast, so treat it mainly as a scenic and historical passage rather than a full town walk.

I would especially value this part of the trip if you want more than swimming. The Blue Cave is about nature and atmosphere. Our Lady of the Rocks and Perast add Montenegro’s human story, religious traditions, and old stone architecture. The downside is time. Twenty minutes on the island passes quickly, and crowds can make the small site feel even smaller.

Inside the former submarine tunnels

The former submarine tunnel is one of the most unusual stops. The speedboat enters a tunnel cut into the mountains, giving you a close view of the structure from the water. These hidden naval shelters were built for military use, and their dark interiors feel far removed from the sunny resort scenery outside.

The stop lasts about 10 minutes. That is short, but the setting does not need much time to make an impression. You will see the tunnel from inside and hear some explanation about its past, though the amount of detail depends on the captain.

This was one of the most consistently praised parts of the outing. Several people found the tunnel more surprising than expected, and one family called the 007 or submarine cave especially cool. I can see why. It is not a polished museum or a long guided visit. It is a quick look at a stark piece of military infrastructure, reached by boat and viewed in its original setting.

Keep your camera ready, but do not expect a long stop. The boat may remain inside only briefly before moving on.

Mamula Fortress and a darker chapter

The boat makes about a 10-minute stop around Mamula Island, where you can admire the old fortress from the water. The fort once served as a prison, giving the island a more serious atmosphere than the postcard scenery elsewhere in the bay.

You do not appear to go ashore during this short stop. Instead, the captain shares stories while you look at the fortress and its position on the island. This is another place where the commentary matters. A lively captain can turn a quick view into a meaningful glimpse of Montenegro’s military past. A quiet captain may leave you with little more than photographs.

Mamula works well as the final historical note before returning to Kotor. It also helps break up the long outward and return rides. Still, do not book this experience expecting extensive time at the fortress. Ten minutes around the island is a viewing stop, not a full historical tour.

Comfort, safety, and the crowded-boat question

The boat is the central factor in your enjoyment. When the group is around 11 to 14 people, the ride can feel social without being unbearable. Some people found 14 passengers manageable and praised the captain’s ability to handle waves and traffic.

Other accounts describe 16 people aboard, too few seats, and very little room to turn around for photographs. There are also conflicting statements about capacity. One response from the operator says its licensed capacity is 14 people including the captain, while the general activity information gives a maximum of 80 participants. That larger number likely refers to the total activity rather than one boat, but you should confirm the boat arrangement if space matters to you.

The operator also offers private boat trips for people who want more room and a more personal schedule. If you dislike close seating, have back problems, or want calm photography time, paying more for a private option may be sensible.

Most positive accounts praise the captains for safe handling, punctuality, and skill around other boats. Captain Boben is named in one especially happy family account. Several people also appreciated captains who adjusted speed in rough water and found a safe alternate swimming spot.

Still, the trip can be physically demanding. The route outside the inner bay may be choppy, and speedboat seats do not absorb every bump. One person reported discomfort from the ride, while another described an awkward ladder and poor handling of a minor hand injury. Those accounts are not consistent with the many positive safety comments, but they are useful reminders to hold the rail, move carefully, and speak up if the ride becomes uncomfortable.

Bring your own drinking water. The operator does not advertise water onboard, and one person specifically wished it had been offered. Snorkeling gear may be limited, too, so if you care about seeing underwater life, bringing your own mask is a wise precaution.

Timing matters, especially for cruise passengers

The boat departs at a fixed time, and the operator asks you to arrive 30 minutes early. Some people felt 15 minutes would have been enough, but arriving early is still smart because the waterfront can be busy with several boat groups gathering at once.

Cruise passengers face a special problem in Kotor. Ships often use tenders, and getting from the ship to the port can take much longer than expected. Medical emergencies, rough tender conditions, or simple queues can make you late even when you leave the ship promptly.

This operator does not promise to hold the boat for late arrivals. The stated cancellation rules also do not allow changes less than 24 hours before departure. If you are arriving by ship, book only when you have a realistic plan for reaching Park Slobode, and leave a large buffer. A ship-organized excursion costs more, but it may offer better protection against a late tender.

For independent visitors staying in Kotor, this risk is much lower. The meeting point is straightforward, and the return to the same location makes it easy to continue sightseeing afterward.

Is $32.53 a fair price?

At $32.53 per person, the tour is priced attractively for a three-hour speedboat outing covering several major sights. You are paying for transport across a wide stretch of the bay, access to a boat, a swimming opportunity when conditions allow, and a quick look at places that would be difficult to combine on foot.

The value is strongest on a clear, calm day when the Blue Cave is open and the boat is not overloaded. You can see natural scenery, historic sites, and military remains without arranging several separate trips.

The value weakens if the cave is closed, the group is crowded, or fuel delays and rough water shorten the sightseeing time. One person found a similar excursion available near the dock for about 30 euros, so last-minute local options may sometimes be close in price. However, booking ahead gives you a confirmed place, which can matter during busy periods.

I would not call this a luxury experience. The low price comes with a basic boat, limited time at each stop, variable commentary, and possible crowding. If you want comfort, flexible timing, and more history, a private trip is likely worth the extra money.

Who should book this speedboat trip?

I would recommend it to you if you:

• Want to combine the Blue Cave with Our Lady of the Rocks and the submarine tunnels in one short outing
• Enjoy fast boats and do not mind spray or bumps
• Have limited time in Kotor
• Like swimming but understand that the location and length of the swim can change
• Prefer a low-cost shared trip to a private charter
• Can arrive early and do not face cruise-tender uncertainty

I would look elsewhere if you:

• Need a quiet, smooth ride
• Want long visits at Perast, the church island, or Mamula
• Expect detailed historical guiding throughout the trip
• Feel uneasy around crowded boats
• Are booking around a tight cruise schedule
• Consider the Blue Cave a must-see and cannot accept a weather-related change

Free cancellation is available up to 24 hours before the start time. Within 24 hours, changes and refunds are not accepted under the stated policy. The experience can also be canceled for poor weather or if the minimum number of participants is not reached.

Should you book it?

Book this tour if you want maximum variety in minimum time. The Blue Cave, submarine tunnel, and fast ride provide the strongest moments, while Our Lady of the Rocks and Perast add cultural depth. The high overall rating and repeated praise for skilled captains suggest that many people have a very enjoyable day.

I would book it for a clear-weather morning, arrive well ahead of time, bring water and sunscreen, and expect a shared boat rather than a spacious cruise. If you are coming from a cruise ship, the schedule is the deciding factor. If you need comfort or a more personal guide, pay extra for a private boat. For everyone else, this is a lively, good-value introduction to Kotor Bay, with a few rough edges that are easy to accept when the sea and the Blue Cave cooperate.

FAQ

Where does the tour start and finish?

It starts at Hawaii Boat Tours Kotor, Official Park Slobode 1, Kotor 85330, Montenegro, and finishes back at the same meeting point.

How long does the experience last?

The tour lasts approximately three hours, and travel time is included.

Is the Blue Cave always accessible?

No. Entry depends on weather, waves, water levels, and conditions at the cave. If poor weather causes the entire experience to be canceled, you can be offered another date or a full refund.

Can I swim inside the Blue Cave?

Swimming inside the cave is not guaranteed. When entry or swimming is unsafe or the cave is too crowded, the captain may take you to a nearby swimming spot instead.

Which places are included?

The stops include the Blue Cave, Our Lady of the Rocks, the former submarine tunnel, and Mamula Fortress. The boat also cruises to or around Perast.

How many people can join the activity?

The activity information gives a maximum of 80 participants. Actual boat sizes described for departures range from about 11 to 16 people, so you should confirm the expected boat arrangement if space is important.

What is the cancellation policy?

You can cancel for a full refund up to 24 hours before the start time. Changes or cancellations made less than 24 hours before departure are not accepted.