Kotor: Blue Cave & Lady of the Rocks Boat Tour

Three Hours on Boka Bay: From a Man-Made Island to a Glowing Cave

You board a boat with a licensed skipper who doubles as your guide and cruise through Boka Bay visiting a centuries-old man-made island with a working church, pass a fortress with Cold War history, and swim inside the Blue Cave with engines off so the water stays silent and glowing. The tour includes snorkeling masks, life jackets, drinking water, and a QR-code audio guide in multiple languages, and you're back at the Kotor port within three hours of departure.

Step-by-step itinerary

Stops and time spent at each

1. Bay of Kotor20m
2. Our Lady of the Rocks20m
3. Blue Cave20m

Explore Boka Bay and Blue Cave

• Scenic cruise through Bay of Kotor
• Pass by Mamula Island fortress
• Pass by Perast town
• Visit Our Lady of the Rocks island
• Swim in the Blue Cave
• Cruise through Verige to Bay of Tivat
• Explore former submarine tunnels

The experience

The boat is already moving when you step aboard. The skipper is your guide, and the Bay of Kotor spreads out in front of you before you've finished finding your seat. You're heading toward Our Lady of the Rocks first, a man-made island built over centuries by local fishermen who dropped stones into the water as an act of faith. The church sits on top of it now, and inside are votives, handcrafted treasures, and the story of how a whole island came into being one rock at a time. It takes maybe 20 minutes to walk through, and the dress code means you'll want a cover-up if you're planning to swim later: swimwear isn't allowed inside. The island itself stays open even if the church closes early in shoulder seasons, so you're not locked out by timing.

After that, the boat passes Perast, a Venetian-era town with baroque palaces and narrow stone streets that still feel like a working harbor, and then you're heading toward Mamula Island: a 19th-century military fortress that became a prison during World War II. The skipper tells you the stories as you cruise past. You don't have to get out, but the walls and the history are visible from the water. Then comes the part that makes the whole trip worth the booking: the Blue Cave. Engines cut off about 10 to 20 meters outside the entrance because motorized noise isn't allowed inside anymore. It's an eco-swim now, which means the water stays quiet and the glow stays pure. You anchor there, put on a snorkeling mask if you want one, and swim into water that's actually blue, not because of filters but because of how the light hits the limestone. Life jackets are provided, and the whole thing feels less like a tour stop and more like you've found a secret that's still a secret.

On the way back, the boat takes you through Verige, the narrowest point of the bay, and then into the Bay of Tivat where you'll pass the former submarine tunnels: a Cold War military site that's now open to visitors. The skipper fills in the details about what it was, what it meant, and why it mattered. The whole excursion runs three hours from the Kotor port, and you'll need to arrive 30 minutes early for check-in. Bring a light jacket if you're going in spring or autumn. The water wind picks up faster than you'd expect. The audio guide works on your phone if you want extra context, and Wi-Fi is onboard so you can pull it up without burning through mobile data.

What’s included

Your three hours include hotel or port pickup (as shown in your confirmation), a licensed skipper who serves as your guide, snorkeling masks and life jackets, drinking water, Wi-Fi onboard, an audio guide with written local insights in multiple languages (via QR code), and access to all four main stops: the Bay of Kotor cruise, Our Lady of the Rocks island and church, Mamula Island fortress (viewed from the boat), and the Blue Cave swim. A first aid kit and safety equipment are onboard, and skip-the-line access is included where available (though Our Lady of the Rocks typically has quick entry anyway).

Before you book

Days and timesFriday and SaturdayDepartures at 09:00 and 12:00

Book up to1h before

AgesAdult (11 and older) · Child (4 to 10 years) · Infant (under 4): free

GroupUp to 25

Live guideEnglish

Audio guideSpanish, French, German and Italian

Meeting point and pickupNo hotel pickup: you go to the meeting point. Ends back at the starting point.

Cancellation and refundsFree cancellation up to 24 h before the start. After that, no refund.It may be canceled due to bad weather or if the minimum number of travelers isn't reached. If that happens, you're offered another date or a refund.

Paid on site€ 3

Prices and times updated 2 days ago

Good to know

Low physical effortStroller-friendlyPublic transport nearbyNot recommended with back problemsInfants must sit on laps

Operated by Montenegro Submarine and Speedboat Tours

Is this one for you?Book this if you're docked in Kotor for a few hours and want to see the bay's main sights without arranging a separate boat, guide, and snorkeling gear: the three-hour window and fixed itinerary fit a cruise schedule, and the skipper handles the navigation and the stories.

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Top questions

Can children come?

Yes. Ticket types: Child (4 to 10 years); Infant (under 4): free.

What happens if it rains?

It may be canceled due to bad weather. If that happens, you're offered another date or a refund. Free cancellation up to 24 h before the start.

What time does the tour depart from Kotor?

Departure times vary by season and booking. Arrive 30 minutes early at the location shown in your confirmation for check-in.

Can I swim in the Blue Cave?

Yes. You swim into the cave from outside the entrance: engines are not allowed inside to protect the environment. Life jackets are provided.

Is there a dress code for Our Lady of the Rocks?

Swimwear is not permitted inside the church. Bring a cover-up or suitable clothing if you plan to enter.

What happens if the weather is bad?

The tour may be canceled or rescheduled if sea or weather conditions are unsafe. Check your booking confirmation for the weather policy.

Do I need to bring my own snorkeling gear?

No. Snorkeling masks are provided onboard, subject to availability.

Is the audio guide included?

Yes. It's accessible via QR code on your smartphone. Bring a phone with internet connection (mobile data or Wi-Fi onboard).

How long do we spend at Our Lady of the Rocks?

Roughly 20 minutes to explore the church and island. The church hours vary by season (open until 17:00–19:00 depending on the month).

What should I wear?

Bring swimwear and a cover-up for the church. In spring and autumn, add a light jacket. The water wind can feel chilly.

Is parking available in Kotor?

Parking is very limited in summer. Arrive early if driving, or use public transportation options nearby.