Kotor Private Boat Tour: Blue Cave & Lady of the Rocks

Swim into the Blue Cave's glow without engine noise or crowds.

A private boat tour from Kotor Bay takes you past the Venetian-era town of Perast and the man-made island of Our Lady of the Rocks, then anchors outside the Blue Cave so you can swim straight into its luminous waters. The tour runs three hours with a licensed skipper who guides in English, provides life jackets and snorkeling masks, and shares the history of each stop—from the church's votive collection to Mamula Island's wartime past. Motorized boats stay outside the cave to preserve it; you swim in from the anchorage 10–20 meters away. Museum entry at Our Lady of the Rocks is optional and paid separately in cash.

Step-by-step itinerary

Boat tour of Kotor Bay highlights

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

The Experience

The boat leaves Kotor and curves through the Bay, passing fishing villages and Mediterranean shoreline before reaching Our Lady of the Rocks. This man-made island, built over centuries by local seafarers, holds a church with a remarkable collection of artworks and votives. You'll explore the island on foot—dress code requires at least a T-shirt inside the church—and hear how generations of sailors shaped the stone beneath your feet. The skipper explains the maritime traditions that created it, grounding the stop in real local history rather than legend.

From there, the route passes Perast, a Venetian-era town with baroque palaces and narrow stone streets that line the water. You'll cruise through Verige, the narrowest point of the bay, and hear stories of Mamula Island's 19th-century fortress and its use as a prison during World War II. The skipper shares Cold War details as you approach the former submarine tunnels in the Bay of Tivat—once a top-secret military site, now open to visitors. Each stop has its own layer of Montenegro's past, woven into the day as you move between them.

The Blue Cave is the final swim. Because motorized engines are banned inside to protect the natural environment, your boat anchors 10–20 meters from the entrance and you swim in. Life jackets are provided, and the water glows with a blue luminescence that photographs best with a waterproof phone case (available onboard, subject to availability). The silence—no engine noise, no crowds—is part of what makes it work. Snorkeling masks are included, and drinking water is onboard throughout.

The skipper is your guide and holds a license; Wi-Fi is available on board. Arrive 30 minutes early at the meeting point. The tour runs only in good weather; if it's canceled, you'll get a different date or a full refund. Bring sunscreen, a sunhat, sunglasses, a camera, swimwear, a towel, and a jacket for cooler months—spring and autumn can be chilly on the water.

What’s included

• Licensed skipper and guide in English.
• life jackets and child-size life jackets on request.
• snorkeling masks.
• waterproof phone case (return required, subject to availability).
• drinking water.
• Wi-Fi onboard.
• audio guide and written local insights in multiple languages via QR code.
• first aid kit and safety equipment onboard.
• skip-the-line access where available.

Good to know

Easy physical levelStroller friendlyPublic transport nearbyInfants must sit on laps

Operated by Montenegro Submarine and Speedboat Tours

Is this one for you?Book this if you're staying in Kotor without a car—the skipper picks you up from the bay and narrates the route, so you navigate by listening rather than planning, and the private format lets you linger for photos and swimming at your own pace.

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Top questions

What is Our Lady of the Rocks and why is it man-made?

Our Lady of the Rocks is an island in Kotor Bay built over centuries by local seafarers who placed stones in the water as an act of devotion. It now holds a church with a collection of artworks, votives, and handcrafted treasures that reflect Montenegro's maritime traditions. You'll step onto the island and explore the church during the tour, though you cannot swim there.

Can I swim inside the Blue Cave itself?

Yes. The boat anchors 10–20 meters outside the cave entrance to protect the natural environment—motorized boats are not allowed inside. You swim from the anchorage into the cave to experience the glowing blue water up close. Life jackets are provided, and a waterproof phone case is recommended for photos.

What does the skipper tell you about during the tour?

The licensed skipper guides in English and shares the history of each stop: how Our Lady of the Rocks was built by seafarers, the Venetian heritage of Perast, the military history of Mamula Island and its use as a World War II prison, and Cold War stories from the submarine tunnels in the Bay of Tivat. You'll also hear about the narrowest point of the bay, Verige.

Do I need to bring my own snorkeling gear?

No. Snorkeling masks are provided onboard, subject to availability. Life jackets are also included. A waterproof phone case is available if you want to photograph the Blue Cave, though it's subject to availability—bringing your own is a good backup.

What should I wear to visit Our Lady of the Rocks church?

You must wear at least a T-shirt inside the church; swimwear alone is not permitted. You cannot swim at the island itself. Bring a light cover-up or shirt to change into before stepping onto the island.

How early should I arrive, and what if the weather is bad?

Arrive at the meeting point at least 30 minutes before departure. The tour runs only during good weather; if it's canceled due to poor conditions, you'll be offered a different date or a full refund. Heavy traffic around the starting point is common, so allow extra time if you're driving.