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Sunlight turning the water electric blue inside the Blue Cave on Koločep

Group tour by boat · 4 hours

Blue Cave & Hidden Caves Discovery

Swim into the Blue Cave on Koločep, where sunlight through the water turns the whole chamber electric blue. Four hours, four caves, unlimited drinks, and the crowds left far behind.

Hidden caves and quiet bays are what this tour is about. You'll board at Gruž Harbour, leave the city noise behind in minutes, and spend four hours discovering places most visitors to Dubrovnik never see.

The moment that stays with people is swimming into the Blue Cave itself: every shade of blue, lit from below by the sun. Snorkelling gear is on board, drinks are unlimited, and the pace is yours.

Depending on sea conditions, the captain may adjust the route for your safety and comfort.

The route

  1. First stop

    Rafova Cave

    The locals' surprise opener — your first swim stop, minutes out of the harbour, before most day-trippers are even awake.

  2. Stop 2

    Koločep Island

    The smallest inhabited Elaphiti island: pine forest to the waterline, and coves you'll likely have to yourselves.

  3. Stop 3

    The Blue Cave

    Swim or snorkel inside. Half-light, impossible colours, and the photo everyone goes home talking about.

  4. Final stop

    Three Caves

    The sea carved three chambers into Koločep's cliffside. We anchor, you explore.

Included

  • Professional local skipper and fuel
  • Wine, soft drinks and bottled water — unlimited
  • Sandwiches on board
  • Snorkelling equipment
  • Hotel pick-up (Dubrovnik, Cavtat, Mlini)

Bring yourself

  • Swimwear
  • Beach towels

Good to know

  • Tour starts at 10:00 — pick-up is at 9:00 (around 8:30 from Cavtat or Mlini)
  • We contact you with exact pick-up details the day before
  • Pets are welcome
  • Infants ride on your lap; infant seats are not available
  • Not wheelchair accessible

Boarding & pick-up

Boarding is at Gruž Harbour, Dubrovnik —open in Google Maps. Staying in Dubrovnik, Cavtat or Mlini? Pick-up is included — we confirm your exact time and place the day before.

Good questions

Can I actually swim inside the Blue Cave?

Yes — that's the point of the tour. The entrance is too small for boats, so we anchor outside and you swim or snorkel in. Life jackets and snorkelling gear are on board, and the skipper helps everyone in and out safely.

What should I bring?

Swimwear, a towel, sunscreen and a hat. Everything else — drinks, snacks, snorkelling gear — is already on the boat.

Is it suitable for children?

Yes. Swimming is always optional, the skipper assists with boarding, and infants ride on your lap.

What if the weather is bad?

Safety decides. If conditions aren't right we'll offer you a new date or a full refund — whichever suits you.

Cancellation, plainly

Free cancellation up to 48 hours before your tour. If the weather turns, we reschedule you or refund you in full — your choice.

Blue Cave & Hidden Caves Discovery

4 hours · Free cancellation 48 h

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