Blue Cave is situated in Balun Bay on Biševo Island. It is one of the most famous attractions on Adriatic.
Because of the underwater tunnel the cave lights up in magnificent blue color. The sunlight reflects from the white basin some 10 to 12 meters deep. The best part of the day to visit the Blue Cave is from 11AM ‘till 1PM.
The cave is 24 meters long and it has 15 meters ceiling. Just under the surface there is an underwater stone bridge connecting the two walls of the cave.
Blue cave was originally accessible only through its underwater tunnel through which the light comes in. Baron Eugen von Ransonet who first discovered the cave and painted it, suggested that a small tunnel is dug for small boats to te able to get in the cave. It was dug in 1884.
More than 10.000 tourists visit the cave each year through the 1.5 m high and 2.5 m wide tunnel on small dinghies.
If you visit the Blue Cave and anchor your boat in Balun Bay – a fair warning: it is deep and rocky bottom so anchor won’t hold very well. It is best for a part of the crew to stay onboard and see the cave in two groups.