Strašna peć is a cave near the village of Savar in the central part of Dugi otok.
It was first mentioned in 1898, and was popularized in 1904 by the "Illustrierte österreichische Riviera Zeitung" when the first excursion destination was organized not only on Dugi otok but also beyond. It was then visited by the Austro-Hungarian Emperor Francis Joseph himself. Impressed by its beauty, Franjo Josip had the cave fixed up, so an iron door was placed at the entrance, two lanterns were installed and an access staircase from the sea was placed. Its entrance is at an altitude of 70 meters, and it is formed in well-layered ore-bearing limestones. After the entrance, which was formed by the collapse of part of the vault, the canal descends slightly at the beginning, and then descends steeper to the bottom, which is filled with collapsed blocks.
You can find the legend of the cave at strasnapec.com