Kotor: Blue Cave, Lady of the Rocks & Secret Tunnels

Motorboats Stay Outside the Blue Cave Now. You Swim In

You cruise the Bay of Kotor, swim into the glowing Blue Cave without engine noise, visit a centuries-old island church, and hear Cold War stories at submarine tunnels. The boat stays small (max 25 people), your skipper doubles as guide, and life jackets plus snorkeling masks are provided. Arrive 30 minutes early. The experience works best before 6 pm when the cave's light is strongest.

Step-by-step itinerary

Stops and time spent at each

1. Bay of Kotor20m
2. Blue Cave20m

Boka Bay cruise and cultural stops

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

The experience

Most boat tours motor straight into the Blue Cave, engines churning. This one doesn't. The boat anchors 10 to 20 meters outside the entrance, and you swim the rest (life jacket on, snorkel mask ready) into water so luminous it doesn't look real. It's quieter this way, cleaner, and honestly stranger. The glow hits different when you're floating into it under your own power instead of sitting in a cabin.

The day starts with a cruise through the Bay of Kotor itself, past fishing villages and the narrow limestone walls that make this corner of the Adriatic feel closed off from the rest of the world. Your skipper is also your guide, and the boat carries a QR code audio guide in multiple languages if you want the history without the talking. You'll pass Perast (a town of baroque palaces and stone streets that got rich during the Venetian era), and then pull up to Our Lady of the Rocks, a man-made island built over centuries by local sailors who threw stones into the water as offerings. The church is small, packed with votives and handcrafted art, and you'll need at least a T-shirt to go inside, not swimwear. After that comes the Blue Cave, the moment everyone's waiting for.

The last stop is Verige, the narrowest point in the bay, where you'll hear about the former submarine tunnels: a Cold War military site that's now open to visitors. It's the kind of detail that makes you realize how much history got compressed into this small stretch of water. The whole thing runs under 25 people maximum, which means it doesn't feel like a cattle run, and the boat carries Wi-Fi, drinking water, first aid, and child-size life jackets on request. Weather can cancel or reroute the tour, especially the Blue Cave visit if the sea gets rough, but that's the trade for keeping it safe.

What’s included

• Your day includes a licensed skipper who guides you through the bay, Wi-Fi onboard, snorkeling masks and life jackets (child sizes on request), drinking water, a first aid kit, and audio guide access via QR code in multiple languages.
• You'll visit Our Lady of the Rocks church, swim into the Blue Cave, pass Mamula Island fortress, and explore the Cold War submarine tunnels near Verige.
• Skip-the-line access is included where available.
• The tour runs with a maximum of 25 people.

Options for this experience

2 options

Private boat, up to 6 guestsGuide in English · 09:00 and 12:00The fee applies per boat, not per person, and covers up to 6 guests, whether your group is two, four or six people. Your VIP private charter lets you swim longer in the Blue Cave, avoid the crowds, have the whole boat to yourselves and set your own schedule. Lasts 3 hours.

Blue Cave Experience, rated number oneGuide in English · 09:00 and 12:00Signature trip with a swim in the Blue Cave, the tunnels, Mamula and the famous Lady of the Rocks. Fast premium boats, music and equipment included. Genuinely authentic. Lasts 3 hours.

You'll see the exact price of each option when you check availability.See dates and prices

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, Italian, Chinese, Danish, Dutch, Hebrew, Polish, Russian, Swedish and Turkish

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. If that happens, you're offered another date or a refund.

Paid on site€ 3

Prices and times updated yesterday

Good to know

Low physical effortStroller-friendlyPublic transport nearbyInfants must sit on laps

Operated by Montenegro Submarine and Speedboat Tours

Is this one for you?Book this if you want to swim the Blue Cave instead of motoring through it, and prefer a small group (max 25) with a skipper who knows the bay's history: the boat's size and the no-engine-in-cave rule are what make both of those possible.

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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.

Can you swim in the Blue Cave?

Yes. The boat anchors outside the entrance and you swim in wearing a life jacket. Snorkeling masks are provided.

What happens if the weather is bad?

The tour may be rerouted or canceled for safety. If canceled, you get offered a different date or a full refund. The Blue Cave visit is most at risk in rough seas.

Do you need to be a strong swimmer?

The tour is suitable for all fitness levels. Life jackets are provided and mandatory.

Can you enter Our Lady of the Rocks church in swimwear?

No. You must wear at least a T-shirt to enter the church.

Is there a guide on the boat?

Yes, the licensed skipper is your guide. There's also a QR code audio guide in multiple languages.

What's included?

Life jackets, snorkeling masks, drinking water, Wi-Fi, first aid kit, and skip-the-line access where available.

What time should I arrive?

Be at the meeting spot at least 30 minutes early. If you're driving, allow extra time: traffic around the park and roadworks on the main road cause delays.

Is the Blue Cave the same after 6 pm?

No. The water's glow is strongest during daylight. After 6 pm the effect is noticeably different.

What should I bring?

Sunglasses, sunhat, sunscreen, camera, swimwear, towel, flip-flops, and a jacket for spring or autumn when it can be chilly on the water.