A Natural Wonder on Biševo Island
Blue Cave, Croatia
Hidden just off the coast of Vis Island lies one of Croatia’s most spectacular natural sights, the Blue Cave (Modra špilja) on Biševo island. Known for its glowing, electric-blue water, this small sea grotto has become a must-see stop for travellers exploring the Dalmatian coast and looking for unique things to do in Croatia.
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Nature’s Light Show Beneath the Waves of Biševo Island
What Is the Blue Cave in Croatia?
The Blue Cave is a partially submerged sea cave where sunlight passes through an underwater opening, bouncing off the white limestone floor and filling the space with a brilliant, fluorescent blue glow. The effect only happens at certain times of day, usually between 10am and 1pm, when the angle of the sun hits just right. Inside the cave, even the shadows look electric.
It’s a short visit to the cave only lasting about 10 to 15 minutes inside the grotto, but it’s a quick stop you won’t forget.
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Where to Depart, What It Costs and When to Go
How to Get to the Blue Cave from Vis or Komiža
Yacht Club Croatia makes a quick stop at the Blue Cave on our way to Vis Island. If you’re not onboard with us and you’re looking for info on how to visit the Blue Cave Croatia, here’s how it works:
- Most tours depart from the fishing village of Komiža, with daily trips running from early morning until early afternoon.
- Head to Komiža harbour in the morning, the earlier is better, especially in peak season.
- Book a spot on a speedboat tour (you can usually organise this at the waterfront). No need to pre-book unless its peak season, so July/August.
- The boat takes you to Biševo, where you’ll transfer to a smaller vessel to enter the cave.
Expect to pay around €20-€25 for the official Blue Cave ticket, plus another €30-€40 for the boat transfer, depending on the operator and whether they include extra stops.
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Bonus Spots to Visit
What Else Can You See on a Blue Cave Tour?
Many Blue Cave tours also include a visit to the nearby Monk Seal Cave (Medvidina špilja), a much larger sea cave that once sheltered Mediterranean monk seals, which are now rarely seen in the area. It’s quieter than the Blue Cave and usually less crowded, making it a nice bonus stop if you’re already out on the water.
Some tours will also take you to hidden beaches, coves around Biševo, or even back around the south coast of Vis.
Travel Tips for Visiting the Blue Cave
- The best time to visit the Blue Cave: Between 10am and 1pm for the strongest blue light effect.
- Weather matters: The cave is only accessible when the sea is calm, so its weather dependent.
- Bring cash: Many ticket booths don’t accept cards.
- Avoid peak crowds: Try to visit earlier in the day, especially in July and August.
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Join Us On Our Next Trip
Ready to Sail to the Blue Cave?
The Blue Cave is more than a photo stop – it’s one of the Adriatic’s most stunning natural sights. At Yacht Club Croatia, we’ll take you there as part of a relaxed, personalised sailing experience, timing your visit for the best light and avoiding the crowds.
Ready to add the Blue Cave to your itinerary? Fill out our online enquiry form to start planning.