Tivat: Blue Cave and Old Submarine Tunnel Speedboat Tour

A fast boat makes Boka Bay feel wonderfully close. This 100-minute trip from Tivat combines dramatic coastal views with a swim inside the Blue Cave, and I like that fuel, bottled water, snorkeling gear, and rain coats are included. The route also gives you quick views of Mamula Island, Luštica Bay, and the old submarine tunnel.

I especially like the easy meeting point in front of St. Roko Church in Donja Lastva and the lively speedboat ride. The main caution is time: with only about 20 minutes at the Blue Cave and five minutes at the submarine tunnel, the outing can feel rushed if you want long swims or detailed sightseeing.

Key points to know before booking

• The Blue Cave swim lasts about 20 minutes, with turquoise water created by light reflecting inside the cave.
• The boat leaves from Donja Lastva, a suburb of Tivat, not central Kotor or a hotel.
• Mamula Island is viewed from the water, rather than visited on foot.
• The submarine tunnel stop lasts five minutes, mainly enough for photos and a quick look.
• The ride is built for scenery and speed, with roughly 35 minutes of outward cruising and 35 minutes on the return.
• Summer gear matters: bring a swimsuit, towel, sunglasses, and sun cream.

Why this short Tivat boat tour works

Boka Kotorska is one of the most striking corners of the Adriatic. Mountains rise sharply around a long, winding body of water, while villages, churches, old houses, and former palaces line the shore. From a road, you see only one section at a time. From a speedboat, the whole setting opens up at once.

This tour is a good way to see that contrast without giving up most of your day. The price is $41 per person, which is reasonable for a 100-minute coastal outing that includes fuel, water, snorkeling equipment, and rain coats. You are paying for a compact sightseeing ride, not a full-day cruise with long stops.

The tour earns a 4.8 out of 5 rating from 10 ratings, with particular praise for the beautiful scenery, fun boat ride, convenient Donja Lastva meeting point, and the Blue Cave swim. One less enthusiastic assessment found the schedule too hurried. That split tells you exactly how to judge the experience: book it for motion, views, and one memorable swim, not for a relaxed day on the water.

Meeting in Donja Lastva

The departure point is the dock in front of St. Roko Church in Donja Lastva, a suburb of Tivat. The speedboat picks you up at the expected time.

This location is useful if you are staying around Tivat, especially because it avoids a hotel transfer that is not included in the price. It is less convenient if you are based in Kotor, since you must arrange your own way to Donja Lastva. Hotel pickup and drop-off are not part of the package.

The operator provides English and Serbo-Croatian service. Communication may also take place through WhatsApp, which can help confirm the meeting details and make the start less confusing. Still, allow enough time to reach the dock and identify St. Roko Church before departure.

The boat ride is exposed to the weather. In warm months, bring your swimsuit, towel, sunglasses, and sun cream. During cooler periods, wear warmer clothing and a cap. Rain coats are included, but they are mainly practical protection for changing conditions, not a substitute for proper layers.

The first 35 minutes: Boka Bay from the water

After leaving Donja Lastva, the speedboat follows the coast for a panoramic ride of about 35 minutes. The itinerary divides this into a 20-minute ride, a three-minute pass by Mamula Island, and another 15-minute cruise toward the Blue Cave.

The pleasure here is not one single monument. It is the changing view. Small coastal villages pass by with houses, churches, and elegant older buildings pressed between the mountains and the water. The boat gives you a clean view of the shoreline, with fewer interruptions than you would have from a car.

Boka Kotorska is often compared with a fjord because of its long, narrow shape and steep mountain sides. Technically, it is a submerged river valley rather than a true glacial fjord, but the comparison makes sense when you see the walls of rock rising around the bay. The water, stone, and settlements create the memorable visual rhythm of this part of Montenegro.

You may also catch views toward Kotor Old Town during the ride, although this is not a walking visit to Kotor. The tour is best understood as a water-level introduction to the bay. If you want churches, museums, city walls, or a close look at old streets, you will need a separate visit.

The speed adds fun, but it also affects how much you can take in. Some moments will pass quickly, so keep your camera ready and look around rather than focusing only on the view straight ahead. If you are prone to motion sickness, sit where you feel most stable and avoid making the entire ride about taking photos.

Mamula Island from the boat

Mamula Island appears as a scenic landmark during the outward journey. The stop is listed as a pass by lasting about three minutes, so you should not expect to get off the boat or explore the island.

The island is known for its round fortress, built during the Austro-Hungarian period and later used as a prison. From the water, the fortification gives the island a stern, isolated character. It is a good example of how this tour mixes natural scenery with reminders of the bay’s military past.

The short pass-by is enough for a look and a few photographs, but not for a proper visit. That distinction matters. If Mamula is your main reason for booking, choose a longer excursion that includes time ashore. Here, it is one striking piece of a larger route.

Swimming inside the Blue Cave

The Blue Cave is the main event. The boat stops for roughly 20 minutes, giving you time to swim and use the snorkeling equipment provided.

The cave covers about 300 square meters, with arches rising roughly 25 meters above the water. It has two entrances, and sunlight enters through them before reflecting through the water and onto the cave walls. That light creates the strong blue color that gives the cave its name.

The water inside is about three to four meters deep. You do not need to be an expert swimmer to appreciate the setting, but you should be comfortable in open water and follow the captain’s instructions. The tour description specifically includes swimming and snorkeling, so pack swimwear under your clothes if changing space is limited.

This is the stop that makes the outing more than a simple sightseeing cruise. The water can appear to glow from below, especially when the light is right. The effect is natural, not produced by lighting or decoration, and it is best enjoyed from the water itself.

Twenty minutes is enough for a swim and a close look around, but it is not generous. You may need to move promptly once the boat arrives. If you want to float, snorkel, photograph the cave, and take your time, you may find the visit brief. A recent assessment described the overall schedule as rushed, and the limited Blue Cave time is the clearest reason why.

Conditions can also affect the experience. The cave’s color depends on daylight and water conditions, so the exact shade may vary. The boat ride and swimming stop are weather dependent in practical terms, even though the listed activity includes free cancellation up to 24 hours before departure.

The former submarine tunnel on Luštica

On the return journey, the boat makes a five-minute photo stop at an old submarine tunnel cut into the steep banks of the Luštica Peninsula. Three such tunnels were built during Yugoslavia to hide and repair submarines and ships.

The tunnel is up to 50 meters long and about seven meters wide. Water inside averages around eight meters in depth, while the water near the exit drops to about 30 meters. Those measurements help explain why the openings look more substantial than a simple shoreline notch.

You do not enter the tunnel on this short stop. Instead, you look into it from the boat and take photographs. Five minutes is enough to understand the site, but not enough for a detailed historical explanation or a long exploration.

I like this part because it adds a layer of local history to a trip otherwise focused on scenery and swimming. It also shows how the bay’s sheltered waters have served practical and military purposes, not just tourism. Still, keep expectations modest. This is a quick glimpse, not a museum visit.

The final 15 minutes back to Donja Lastva

After the submarine tunnel, the speedboat spends about 15 minutes returning to Donja Lastva. The full route includes another short stretch of scenery before you reach the starting dock.

The return is a useful chance to enjoy the bay without trying to fit another scheduled stop into your attention. You have roughly ten additional minutes of views before arrival, according to the tour timing. Keep your camera away for at least part of this section and simply watch the shoreline change.

Because the trip is short, the final ride does not feel like dead time. It completes the loop and gives you one more look at the mountains, villages, and water that frame Tivat and Kotor. Still, the boat returns to the same place it left from, so arrange onward transport separately if you are heading to another town.

Speed, comfort, and what the timing means

This is a speedboat tour, not a quiet sightseeing cruise. The fast ride is one of its pleasures. It lets you cover the route from Tivat toward Luštica and back in a little under two hours, with enough speed to make the outing feel active.

The tradeoff is limited time at each point. The schedule allows approximately:

• 35 minutes of outward coastal cruising
• Three minutes passing Mamula Island
• 20 minutes at the Blue Cave
• Five minutes at the submarine tunnel
• 35 minutes returning toward Donja Lastva

The stated duration is 100 minutes, while the individual ride segments and stops add up to roughly this amount. You should expect a tightly timed experience, with the captain keeping the boat moving between attractions.

This format suits you if you want a lively half-day addition to a Tivat stay, or if your schedule leaves no room for a longer cruise. It is less suitable if you prefer long swims, quiet observation, or a guide-led historical tour with plenty of explanation.

The boat has been praised for being new and pleasant, and the captain has been described as friendly. Music may form part of the ride, adding to the holiday mood. That will appeal to some people more than others. If you prefer silence on the water, the music and engine noise may be less welcome than the scenery.

Is $41 good value?

At $41 per person, the cost is fair for the combination of transport and activities. Fuel is included, which matters on a speedboat route, and you also receive bottled water, snorkeling equipment, and rain coats. You are not paying extra for the basic items needed during the ride.

The value is strongest if you use the Blue Cave stop fully. A simple coastal cruise would give you the views, but this outing adds a swim in a cave with unusual natural light and a look at a former military tunnel.

The price is less attractive if you mainly want to visit Mamula Island or spend an extended time swimming. Mamula is only viewed from the boat, and the Blue Cave stop is limited to about 20 minutes. A longer water excursion may suit you better if those are your top priorities.

Free cancellation up to 24 hours before departure and reserve-now, pay-later booking make the price easier to fit into a changing itinerary. These terms are useful, but the main value question remains simple: do you want a fast sampler of Boka Bay, or a slow day on the water?

Who should book this experience?

I would choose this tour if you are staying in or near Tivat and want several memorable sights in a compact outing. It is a strong match for couples, friends, and active families who enjoy boat speed and do not need long stops.

It also works well as a first look at the bay. You can see the coast from the water, note places you want to revisit, and still have most of the day available for Tivat, Kotor, or Luštica.

You should think twice if you dislike fast boats, need a great deal of time to swim, or want detailed commentary at each historical site. The driver speaks English and Serbo-Croatian, but the supplied information does not promise an extended guided explanation at every stop.

Final call: book it for motion and the cave

Book this tour if your ideal outing includes big bay views, a fast ride, and a short swim in striking blue water. The Donja Lastva departure is convenient for Tivat, the price includes useful extras, and the route covers several of Boka Bay’s most photogenic features.

Skip it if you want a slow cruise, a visit inside Mamula’s fortress, or plenty of time at the submarine tunnel. For everyone else, this is a lively and good-value way to see the bay without surrendering a whole day.

FAQ

Where does the tour start?

It starts at the dock in front of St. Roko Church in Donja Lastva, a suburb of Tivat.

How long does the experience last?

The tour lasts 100 minutes.

Is hotel pickup included?

No. Hotel pickup and drop-off are not included, so you must reach the Donja Lastva meeting point yourself.

How much time is spent swimming in the Blue Cave?

The Blue Cave visit includes about 20 minutes for swimming and snorkeling.

Can I visit Mamula Island?

No. The route passes by Mamula Island for about three minutes, but the provided schedule does not include going ashore.

How long is the stop at the old submarine tunnel?

The boat makes a five-minute photo stop at the former submarine tunnel on the Luštica Peninsula.

What should I bring?

During summer, bring a swimsuit, towel, sunglasses, and sun cream. In colder periods, bring warmer clothes and a cap. Snorkeling equipment, bottled water, and rain coats are included.