Best time to travel to Croatia

The Blue Cave in Croatia

A precious gem among Croatia's nature highlights

Best time: May–October

The Blue Cave
The Blue Cave

The Blue Cave (Modra špilja) on the island of Bisevo is one of the most beautiful secrets of the Adriatic sea. The ideal moment to visit the cave is between 11 a.m. and noon. At this time of day, the sunlight reflects through the water coming from the white floor of the cave and colours it in blue light, while objects in the water appear to be silver.

Although it’s sometimes possible to visit the cave out of season, the sea conditions from October to May usually make entry into the cave impossible. So the ​best time to visit is June-September. You can visit the cave on a boat, but diving or snorkeling in the Blue Cave is worth trying to fully appreciate its beauty.

Practical info

What is the best time to visit the Blue Cave in Croatia?

To visit the Blue Cave in Croatia, May through October is the best time, with the months of June through September being the most favorable. These months have the smoothest sea conditions, allowing you to effortlessly access the cave by boat. Nevertheless, sea conditions can occasionally permit visits outside the recommended period. Show more

How can I visit the cave and experience its beauty?

Boat tours are the best way to experience the beauty of the Blue Cave. Additionally, diving and snorkeling provide added perspectives of the underwater world's splendor. Most boat tours go beyond the Blue Cave, enabling you to explore different parts of Bisevo Island, where the cave is located, offering more natural beauty to behold during your trip. Show more

Where is the Blue Cave located in Croatia?

Croatia's Blue Cave or Modra špilja is situated on the small island of Bisevo in the Adriatic Sea, adjacent to Vis Island. It is approximately 4.5 nautical miles away from Komiža, a tiny city on Vis Island. A preferred tourist attraction, many visit the Blue Cave to immerse themselves in the beautiful and pristine surroundings of the Adriatic Sea. Show more

Why is the sunlight reflection in the cave blue in colour?

The reflection of the sun's light on the water inside the cave causes the blue hue. Shallow water and a white cave floor allow the sunlight to penetrate the cave, producing reflections of blue light. This occurrence creates a blue light that bounces off the water, making submerged objects appear silver. Show more

When is it impossible to enter the cave due to sea conditions?

Sea and weather conditions between October and May make it difficult or impossible to access the Blue Cave safely. Strong winds and high waves can make visits impossible, but if weather conditions outside these months are also unfavorable, then visiting may be unsafe. Thus, local authorities, as well as tour guides, should be consulted before planning a trip to the Blue Cave. Show more

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Last updated: by Eleonora Provozin