Why is this cave so fascinating and different from similar blue caves? According to many world travelers and dignitaries, the Blue Biševo Cave surpasses the world-famous Grotta Azzurra Cave on the island of Capri near Naples in its beauty. It was declared a protected geomorphological monument of nature in 1951.

The specific phenomenon of the blue and silver shades of the sea creates the recognizability and splendor of the Biševo Blue Cave. Sunlight penetrates through the underwater opening and first refracts and leads to shades of blue. Depending on the time of day and the angle of refraction of light inside the cave, the colors merge into each other, so the sea in the cave sometimes has the color of liquid silver.

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