Blue Cave swimming tour Montenegro: Private boat with Boka Bay

Swim into the Blue Cave and cruise one of the world's 25 most beautiful bays

A private boat tour in Montenegro takes you swimming into the Blue Cave, then cruises Boka Bay to the man-made island of Our Lady of the Rocks, built over 200 years from stone by fishermen and villagers after they found an icon beneath it. The tour runs three hours with a live English-speaking guide, hotel pickup, and free drinks included; groups stay under six people.

Step-by-step itinerary

Blue Cave and Boka Bay cruise

• Cruise through Boka Bay
• Admire Mamula island from boat
• Swim in the Blue Cave
• Stop at Our Lady of the Rocks island

The Experience

The boat leaves from your hotel and heads straight into Boka Bay, where the sea meets the land in a landscape that ranks among the world's 25 most beautiful bays. On the way to the Blue Cave you'll pass Mamula, an old Montenegrin fortress now a private resort, visible from the water but off-limits to visitors. The guide points out the geography as you move through the bay—this is the route that frames the whole morning.

The main stop is the Blue Cave itself, where you swim directly into the cavern. The water inside shifts color in the light, and the cave opens to the sky above. After swimming, the boat makes a second stop at Our Lady of the Rocks, a man-made island built entirely from stone over two centuries. Local legend says two fishermen found an icon beneath the seafloor and decided to build an island around it; the community added to it for generations until a church stood on top. You'll see the island and its church from the boat, and the guide explains the history as you float nearby.

The tour runs three hours total. Free drinks are served on board throughout. Your guide speaks English and knows the bay well enough to answer questions about what you're seeing. Pickup from your hotel is included, so you don't arrange transport separately.

What’s included

• Hotel pickup.
• three-hour private boat tour.
• swimming access to the Blue Cave.
• stop at Our Lady of the Rocks island.
• views of Mamula fortress and Boka Bay.
• live English-speaking guide.
• free drinks on board.

Good to know

Easy physical levelPets welcomePublic transport nearbyNot for back problemsInfants must sit on laps

Operated by "Magellan" Speed Boat Tours

Is this one for you?Choose this if you want a skipper handling navigation and timing while you swim—the small boat (under six) fits through the cave's narrow passages where larger groups can't go.

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Top questions

What exactly is the Blue Cave and why is it worth swimming into?

The Blue Cave is a sea cavern in Montenegro where the water glows an intense blue due to light filtering through an underwater opening. You swim directly into it during the tour—it's one of the top activities visitors do in Montenegro because of the color and the enclosed space of the cave itself.

Is Our Lady of the Rocks a real island or was it built on something that already existed?

Our Lady of the Rocks is entirely man-made, built from stone over 200 years by local fishermen and villagers. According to legend, two fishermen found an icon beneath the seafloor, and the community decided to build an island around it. A church now stands on top, and you see it from the boat during the tour.

How long does the tour take and what's included in the price?

The tour runs three hours. Included are pickup from your hotel, the boat ride through Boka Bay, swimming access to the Blue Cave, a stop at Our Lady of the Rocks, and free drinks on board. Your guide speaks English throughout.

Can I visit Mamula fortress, or do we only see it from the boat?

Mamula is visible from the boat as you cruise toward the Blue Cave, but it's now a private resort and closed to visitors. You'll see its old fortress structure from the water and learn its history from your guide, but landing there is not part of the tour.

What should I bring or wear for a swimming tour in Montenegro?

Bring swimwear, a towel, and sunscreen. The tour involves swimming in the sea, so wear something you're comfortable getting wet in. Water shoes are useful for rocky areas. The boat provides free drinks, so you don't need to bring beverages.