Tivat: Blue Cave and Old Submarine Tunnel Speedboat Tour

The best part of this 100-minute speedboat trip is the Blue Cave, where sunlight turns the water an extraordinary blue. You’ll also get a fast, scenic run through Boka Bay, with mountain slopes, small coastal villages, churches, and old palaces sliding past your seat.

I like the easy meeting point at Donja Lastva, directly by St. Roko church, and the useful extras: bottled water, snorkeling gear, and rain coats are included. The main trade-off is time. This is a compact outing, so the boat moves quickly and each stop is brief.

Key points at a glance

• Twenty minutes in the Blue Cave: The main event is a swim in three to four meters of luminous turquoise water.
• A fast route from Donja Lastva: The ride covers Boka Bay and the Luštica coast without requiring a full-day commitment.
• Mamula Island from the water: You pass this striking island rather than stopping to explore it.
• A five-minute submarine tunnel stop: You’ll see one of three Yugoslav-era tunnels cut into Luštica’s steep shore.
• Practical gear included: Fuel, bottled water, snorkeling equipment, and rain coats are provided.
• A good price for a short outing: At $41 per person, the tour offers several sights, but not much time at any one of them.

A quick Blue Cave trip from Tivat

This outing is designed for people who want to see several coastal sights in a short window. You meet the speedboat at the dock in front of St. Roko church in Donja Lastva, a suburb of Tivat, then head out along the coast.

The boat ride is part of the attraction, not just transport. Boka Kotorska is one of the Adriatic’s longest and deepest bays, and its steep mountains give it the feel of a fjord. The shoreline is dotted with small settlements, churches, houses, and grand older buildings. From the water, you get a broad view that is hard to match from a road.

The trip takes about 100 minutes, including the boat rides, the Blue Cave swim, and the submarine tunnel stop. That makes it easy to fit around time in Tivat, a cruise port call, or a day when you do not want a long organized excursion.

Still, this is a see the highlights quickly trip. You should not expect a relaxed day on the water or a detailed visit to every place named along the route.

Leaving Donja Lastva by speedboat

The starting point is simple: look for the dock in front of St. Roko church. The speedboat picks you up there at the scheduled time, and hotel transportation is not included, so you need to arrange your own way to Donja Lastva.

Once aboard, the first part of the ride gives you time to take in the coast. The route is split into several short boat legs, with about 35 minutes of scenic riding before the Blue Cave when the timing is combined. The exact feel depends on the sea and the boat’s pace, but you should expect a brisk ride rather than a slow sightseeing cruise.

That speed is useful. You cover the bay and reach the cave without spending most of the morning in transit. It also means you’ll want to keep your camera ready. The views can change quickly as the boat passes villages, rocky shorelines, churches, and mountain walls.

The tour includes an English and Serbo-Croatian-speaking driver. Communication with the operator has also been described as clear and convenient, including contact through WhatsApp before the trip. That matters when you are trying to locate a small dock in a busy coastal area.

Boka Bay views from the water

Boka Kotorska is the visual star of the ride. The water cuts far into Montenegro, with high mountains rising around its inlets. From a boat, you see how tightly the settlements fit between the bay and the slopes.

You’ll pass sections of the Luštica Peninsula, a rugged arm of land separating the inner bay from the open Adriatic. The views include a mix of natural shore and built-up waterfront. Small villages, old houses, palaces, and churches give the ride more character than a simple open-sea crossing.

The route also offers views toward Kotor Old Town, though this is a passing perspective rather than a town visit. You will not have time to walk Kotor’s lanes, enter its buildings, or explore the waterfront. If Kotor is your main goal, book a dedicated town visit separately. Here, the value is the wide view of the bay and the relationship between the old city, water, and mountains.

Bring sunglasses and sunscreen in warm weather. The sun reflects strongly off the water, and there is little point in reaching the Blue Cave with sore eyes or a burned neck. A towel and swimsuit are also sensible, since the cave stop is built around swimming.

Passing Mamula Island

Mamula Island appears during the coastal run, but the boat only passes by for a few minutes. The island is known for its round fortification, which gives it a strong presence from the water.

This is an important detail when deciding if the tour suits you. Mamula is a photo opportunity, not a stop where you can walk ashore or study the fort at length. Keep your phone or camera ready, but do not expect a guided island visit.

The brief pass works well as part of a fast coastal sampler. You get another memorable landmark without giving up the main swimming stop. The downside is that anyone hoping to explore Mamula will find this portion too short.

Swimming inside the Blue Cave

The Blue Cave is the central reason to book this trip. The boat reaches a large sea cave with an area of roughly 300 square meters, two entrances, and arches around 25 meters high. The water is about three to four meters deep.

The famous blue color comes from sunlight entering through the cave openings and reflecting through the water onto the walls. The effect makes the water appear to glow from below. It is a natural light show, but a simple one, best enjoyed by getting into the water rather than only looking from the boat.

You get about 20 minutes for swimming and snorkeling. That is enough for a refreshing dip and a look around, but it is not a long beach break. If you are a confident swimmer, you can make good use of the time. If you prefer to stay dry, you can still enjoy the cave’s color and high stone arches from the boat.

Snorkeling equipment is included, which saves you from packing your own mask and breathing tube. The tour also supplies bottled water. During cooler weather, the operator recommends warmer clothes and a cap, while summer visitors should bring a swimsuit, towel, sunglasses, and sun cream.

The Blue Cave stop can be affected by the practical limits of a short boat tour. You may find the stop feels rushed, especially if several boats are using the same popular site. The available information includes one clear criticism that the main points felt hurried and allowed little time for enjoyment. That is fair. The cave is beautiful, but 20 minutes passes quickly once you enter the water, adjust your gear, and take a few photos.

The former submarine tunnel on Luštica

On the return route, the boat makes a five-minute photo stop at an old submarine tunnel. Three such tunnels were cut into the steep banks of Luštica during the Yugoslav period.

The tunnels were used to hide and repair submarines and ships. This one reaches up to about 50 meters long and seven meters wide. The average water depth inside is around eight meters, while the water near the exit drops to roughly 30 meters.

The visit is viewed from the boat. You do not get a long historical talk or a walk through the tunnel. Five minutes is enough to take photos and understand the scale of the opening, but not enough for a full military-history visit.

I like this stop because it adds a human layer to a trip otherwise focused on scenery and swimming. The bay is not only pretty. It has also been used for defense, shipping, repairs, and naval activity. The tunnel gives you a quick reminder of that past.

If your interest is mainly history, keep your expectations modest. This is a visual stop, not a museum experience.

What the $41 price really buys

At $41 per person, the tour is priced as an affordable short boat excursion rather than a full-day private charter. Fuel is included, which is useful because boat fuel can add noticeably to coastal excursion costs. Bottled water, snorkeling equipment, and rain coats are also provided.

The strongest value comes from combining several sights in about 100 minutes. You get a scenic ride through Boka Bay, a pass by Mamula Island, swimming in the Blue Cave, and a glimpse of a former submarine tunnel. If you tried to arrange separate transport for each part, you would spend more time and likely more money.

The price is less attractive if you want long stops, quiet time in the cave, or a detailed look at the tunnel. The tour’s compact format keeps the cost and time commitment down, but it also limits how much you can do at each place.

For many people staying in Tivat, that trade-off makes sense. You can enjoy the coast without giving up an entire day. The activity also suits a port day or a spare morning when you want a strong dose of scenery and swimming.

The speedboat experience

The boat ride is not a minor detail. You’ll travel quickly along the coast, and the changing views are one of the most praised parts of the outing. One especially positive account describes the boat as new and attractive, with music, a pleasant captain, and an enjoyable sense of speed.

A fast boat gives you more coastline in less time. It also makes the ride feel lively rather than passive. You should be ready for wind, spray, and movement on the water, though rain coats are included for changing conditions.

The word speedboat matters here. If you want a quiet, slow cruise with long commentary, this may not be your ideal choice. If you like the feel of moving quickly between rocky shores and open water, it is a good match.

The boat also provides the best views for photography, but hold onto your phone securely. The route includes open sections and turns, and the scenery can disappear behind you in seconds.

Who should book this tour?

I would choose this outing if I had limited time in Tivat and wanted three different experiences in one: a bay cruise, a cave swim, and a quick look at a former naval tunnel.

It is especially suitable for:

• People staying in Tivat who want a short coastal excursion
• Swimmers who want time in the Blue Cave
• Couples and friends who enjoy a fast, scenic boat ride
• Cruise passengers or day visitors with only part of a day available
• Anyone who values included snorkel gear and bottled water
• Visitors who want views of Kotor Bay without committing to a full-day program

It is less suitable if you need a slow pace, long historical explanations, or an accessible sightseeing format that avoids getting wet. Swimming is a central part of the Blue Cave visit, and the schedule leaves little room for lingering.

Families should also think about the speedboat format and the short stops. The supplied information does not specify age limits, boat capacity, or child facilities, so ask the operator directly if those details matter for your group.

Timing, weather, and what to pack

Summer is the easiest season for the swimming portion. Pack a swimsuit, towel, sunglasses, and sun cream. A waterproof phone pouch would also be sensible, although it is not listed as included.

For cooler periods, bring warmer clothes and a cap. Rain coats are provided, but they are not a substitute for layers if the wind picks up. The boat spends much of the trip outdoors, so dress for conditions on the water rather than only the temperature on land.

The activity offers free cancellation up to 24 hours before departure, and you can reserve now and pay later. Starting times depend on availability. Those policies give you some flexibility, but you should still check the exact departure time before planning connections or other fixed activities.

The published timing adds up to roughly the advertised 100 minutes when the boat legs and stops are treated as approximate. Coastal tours can shift slightly with conditions, loading, and traffic near popular sites. Leave a little breathing room afterward instead of booking something that begins immediately at the stated return time.

My verdict: a lively short trip with one main star

You should book the Tivat Blue Cave and Old Submarine Tunnel Speedboat Tour if you want a compact outing with strong scenery and a real swim in the Blue Cave. The combination of Boka Bay views, Mamula Island, Luštica, and the submarine tunnel gives you a useful introduction to the coast for $41.

Go in knowing what you are buying. This is not a relaxed day cruise, a Kotor Old Town tour, or a detailed history program. The cave stop lasts about 20 minutes, Mamula is a pass-by sight, and the submarine tunnel gets five minutes for photos.

For me, the best reason to choose it is the balance of price, speed, and variety. You get on at a convenient Tivat-area dock, see a large slice of the bay, swim in unusual blue water, and return in under two hours. If that sounds better than spending a whole day on one activity, this is a sensible pick. If you want time to linger, choose a longer boat trip instead.

FAQ

Where does the Blue Cave speedboat tour start?

The meeting point is on the dock in front of St. Roko church in Donja Lastva, a suburb of Tivat.

How long does the tour last?

The tour lasts 100 minutes, or about one hour and 40 minutes. This includes the boat rides, the Blue Cave visit, swimming, and the submarine tunnel photo stop.

How much swimming time do I get in the Blue Cave?

You get about 20 minutes for swimming and snorkeling in the Blue Cave.

Does the tour stop at Mamula Island?

The boat passes by Mamula Island for about three minutes. The tour does not include time to go ashore and explore the island.

Is snorkeling equipment included?

Yes. Snorkeling equipment, bottled water, fuel, and rain coats are included.

What languages are available on the boat?

The driver speaks English and Serbo-Croatian.

Is hotel pickup included?

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