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

The Blue Cave is the headline here: a sea cave where sunlight turns the water an electric blue. The trip also packs in Our Lady of the Rocks, submarine tunnels, Perast, and a look at Mamula Fortress, all in about three hours.

I like the fast speedboat ride and the chance to swim in clear water near the cave. I also like the variety: this is not just a swim stop, but a quick tour of Kotor Bay’s religious, military, and coastal sights. The main drawback is that the boat can feel crowded, and rough water or heavy boat traffic may limit time inside the cave.

Key points to know before booking

• The Blue Cave is weather dependent: Rough seas or high water can make entry unsafe, and swimming inside may not be possible.
• The ride can be choppy: The open-water stretch outside Kotor Bay is often bumpy, especially with many boats moving in both directions.
• You get several sights in three hours: The route includes the Blue Cave, Our Lady of the Rocks, Perast, submarine tunnels, and Mamula Fortress.
• Shared boats vary in comfort: Group sizes described in the available information range from about 11 to 16 people, with a stated maximum of 80 for the activity.
• Cruise ship timing needs care: Kotor is a tender port for many ships, and the boat leaves on schedule. Arriving late can mean missing the trip.
• The tour is best for active sightseers: You should be comfortable with sun, spray, a fast boat, short stops, and limited time at each place.

The Blue Cave sets the pace

The trip begins at Hawaii Boat Tours Kotor near Park Slobode 1, close to the waterfront in Kotor. You board a speedboat and head out toward the Blue Cave, with travel time included in the roughly three-hour tour.

The ride to the cave can take around 45 minutes to an hour, depending on conditions and the day’s route. That is a large part of the outing, so the boat ride itself matters. You get wide views of the bay and open sea, but you also get spray, engine noise, and plenty of bouncing when the water turns rough.

The Blue Cave is entered from the sea. Sunlight passing through the water gives the cave its blue glow, which is the reason this stop draws so much attention. The planned stop lasts about 30 minutes, but that does not mean you will spend 30 minutes inside the cave. Boat traffic can create a queue, and captains may keep visits short for safety.

You may get a few minutes inside, then swim at a nearby open-water spot. Several accounts describe swimming outside the cave when the entrance was too crowded or conditions made cave swimming unsuitable. That alternative can still be pleasant, but it is important to understand the difference: the tour promises access to the Blue Cave area, not a guaranteed swim inside the cave.

Sea conditions are the biggest variable. Rain the night before, high water, waves, or rough entry conditions can prevent the boat from going in at all. In that case, the captain may offer another swimming place or continue with the rest of the route. If seeing the cave is your one reason for booking, check the forecast and accept that nature has the final say.

Our Lady of the Rocks and Perast

The boat continues to Our Lady of the Rocks, the small artificial island opposite Perast. The island was built up over time, and its church is tied to a local legend involving an image of the Virgin Mary found on a rock.

The scheduled stop is about 20 minutes. That is enough for a quick look around the island and church area, but not a leisurely visit. The island is small, and when several boats arrive together, space can feel tight. You will want to keep your visit focused and move at the pace of the group.

This stop adds welcome cultural depth to a trip otherwise centered on swimming and scenery. The church and island show how people shaped the bay, rather than simply admiring it from the water. It is also a good photo stop, especially with the mountains and Perast behind you.

The itinerary also includes a cruise past or stop near Perast, a historic town with Baroque buildings, old palazzos, Catholic churches, and defensive towers. The town has one main street and a compact old center. In this format, you should think of Perast as a scenic look at the town, not a full walking tour. The listed timing does not promise a long independent visit.

I like this part of the route because it breaks up the speed and saltwater. Still, if Perast is high on your list, allow separate time to visit it properly from land. A three-hour boat trip gives you a fine introduction, not enough time for every church, museum, and lane.

Inside the former submarine tunnels

The former submarine tunnels are one of the most unusual stops. These military-era passages were cut into the mountains along the bay and used to shelter submarines. The speedboat takes you into the tunnel, where you can see the scale of the opening and the dark interior from the water.

The scheduled visit is about 10 minutes. That sounds short, but the tunnel itself is a quick visual stop. The boat’s entry gives you a clear sense of how the bay’s steep mountains were used for defense.

This is also the point where the quality of the captain’s commentary matters. Some captains provide stories about the tunnels and the area. Others offer little spoken information, and one account described recorded commentary instead of a full live explanation. If you want a detailed history lesson, this may feel light. If you mainly want to see an unusual place that is hard to reach on your own, the stop earns its place.

The tunnel is especially useful for families and mixed-interest groups. One person can enjoy the military setting, another can take photographs, and children often find the boat entering a dark mountain passage memorable. Keep your expectations reasonable: you are viewing the tunnel from the boat, not taking a long guided walk through it.

Mamula Fortress from the water

The boat makes a short stop around Mamula Fortress, usually about 10 minutes. The circular fortress sits on an island at the entrance to the Bay of Kotor and was once used as a prison.

You do not get a long onshore visit here. The point is to circle or pause near the island while the skipper explains its past. The fortress has a stark appearance, and its isolated position makes clear why it was chosen for military and prison use.

This stop works best as part of the larger route. On its own, 10 minutes would feel brief, but after the cave, island church, and submarine tunnel, it gives the trip another change of subject. You see how the bay was protected from several angles: mountain tunnels, island forts, and narrow sea passages.

The short timing also means the captain’s explanation can shape your impression. Some accounts describe memorable stories from the skipper, while others found the commentary sparse. If you care strongly about detailed interpretation, ask before departure how much live guiding the captain provides.

What the boat ride is really like

This is a speedboat excursion, not a gentle harbor cruise. The boat moves quickly, and the ride outside the sheltered bay can become rough. A few accounts describe a comfortable and skillful captain who adjusted speed around waves, while others found the ride too fast or hard on the back.

You may get wet, so wear clothes that can handle spray and bring sun protection. The advice to apply sunscreen is practical, especially since the open boat offers strong exposure. A hat can help, but secure it well.

Comfort depends on the boat and the number aboard. Positive experiences describe groups of around 11 to 14 people that felt manageable. Negative experiences describe boats with too little room, too many people, or unclear seating. The listed activity allows up to 80 people, but that does not mean 80 people share one boat. Ask the operator how many people are expected on your departure if space matters to you.

The mixed feedback on capacity is worth taking seriously. One response from the operator states that a boat has a licensed capacity of 14 people including the captain. Other accounts describe 16 passengers or a boat that felt designed for fewer people. The practical lesson is simple: confirm the boat size and expected group before paying if you want elbow room.

Safety reports are also mixed. Several people felt secure and praised the captain’s handling, including families with children. Other accounts raised concerns about missing safety instructions, rough handling, or how a minor injury was dealt with. The operator says safety regulations are followed, but you should still pay attention to where life jackets are stored and ask for instructions if they are not given.

Commentary depends on the captain

The captain is central to this experience. Some named feedback praises Captain Boben for making a group of 11 feel safe and entertained. Other accounts describe friendly captains who handled waves and boat traffic well.

The weak point is often explanation. You may receive clear stories about the submarine tunnels, Mamula, or the island church, but some departures offer only brief remarks. A few people felt the captain was mainly a driver rather than a guide.

That difference matters because the tour moves quickly. You do not have much time to read signs or explore independently. If the person at the wheel gives useful context, the stops become more meaningful. If not, the trip becomes mostly scenery, speed, and photographs.

I would ask at check-in whether the commentary will be live and in English. The tour is offered in English, but the amount of narration can still vary. Do not book this expecting a full history lecture at every stop.

Is $32.53 good value?

At $32.53 per person, the tour is priced below many private boat outings. You get a three-hour route, several major sights, a fast boat, and a chance to swim. For a first look at the bay, that can be good value.

The price becomes less attractive if the Blue Cave is inaccessible, the boat is crowded, or a fuel stop and rough water cut into the sightseeing time. You are paying for access and transport across a wide route, not a long stay at each attraction.

A private boat costs more, but it may offer extra space, a slower pace, and greater control over swimming stops. If you are traveling as a couple or family and comfort matters more than the lowest price, compare the private option carefully.

The strongest value comes when the weather is good, the boat leaves on time, the group is moderate, and the captain gives useful commentary. The weakest value comes when your main goal is a long Blue Cave swim. That part is never guaranteed.

Cruise ship timing needs special care

The meeting point is in Kotor, and the activity returns there. Confirmation is provided at booking, and free cancellation is available up to 24 hours before departure. Changes or cancellations inside that 24-hour window are not accepted, except when the operator cancels because of poor weather or an unmet minimum number.

Cruise ship passengers need extra caution. Kotor often uses tender boats, and getting ashore can take far longer than expected. The operator requires arrival about 30 minutes before departure, and the boat will not normally wait for late arrivals.

If your ship is delayed, contact the operator as early as possible, but do not assume a later departure will be available. Several accounts describe failed attempts to move to another time after arriving late. A cruise-line excursion may offer stronger protection for ship delays, though it can cost more.

For an independent booking, choose a departure with a wide safety margin. Do not schedule it close to the time you must return to the ship. The captain aims to keep the tour punctual, which is helpful for a fixed itinerary but unforgiving when your arrival is late.

Who should book this Kotor boat tour?

I would choose this trip if you want to see several coastal sights quickly and enjoy a lively boat ride. It suits active adults, families who can handle spray and bouncing, and anyone who wants a swim stop without paying private-tour prices.

It is also a good fit if the submarine tunnels and Mamula Fortress interest you. Those stops give the route more substance than a simple beach transfer.

I would think twice if you need a smooth ride, dislike crowded boats, have back problems, or want long visits at each site. You should also reconsider if entering and swimming inside the Blue Cave is essential.

Final verdict

This is a worthwhile introduction to Kotor Bay when the sea is calm and your expectations match the format. The best parts are the glowing cave, the unusual submarine tunnels, the small island church, and the thrill of crossing open water by speedboat.

Book it for variety and scenery, not guaranteed cave swimming or detailed guiding. Arrive early, protect yourself from the sun, expect a bumpy ride, and confirm the likely group size. If you are arriving by cruise ship, allow a very large time cushion or choose an excursion with ship-delay protection.

FAQ

How long does the boat tour last?

The tour lasts approximately three hours, including travel time between Kotor and the stops.

Where does the tour begin and end?

It begins at Hawaii Boat Tours Kotor near Park Slobode 1 in Kotor and ends back at the same meeting point.

Is swimming included?

Swimming is possible near the Blue Cave, but it depends on sea conditions, boat traffic, and safety rules. If the cave is inaccessible or too crowded, the captain may use a nearby swimming spot.

Can you always enter the Blue Cave?

No. Rough weather, high water, waves, or heavy boat traffic can prevent entry. The tour may be changed for safety.

What other places are included?

The route includes Our Lady of the Rocks, a cruise near Perast, former submarine tunnels, and a short stop around Mamula Fortress.

Is the tour offered in English?

Yes. The experience is offered in English.

What is the cancellation policy?

You can cancel for a full refund up to 24 hours before the start time. Cancellations or changes made less than 24 hours before departure are not accepted. If poor weather or an unmet minimum causes the operator to cancel, you will be offered another date, another experience, or a full refund.