(Italian for “Emerald Grotto“) is a sea cave located in Conca dei Marini, Italy, on the Amalfi Coast.
It is one of several sea caves, worldwide, that is flooded with a brilliant blue or emerald light.
The quality and nature of the color in each cave is determined by the unique lighting conditions in that particular cave.
The grotto, which is located along the Amalfi Coast, is partly filled with water. The surface area of the water measures roughly 45 x 32 meters, with a cavern roof about 24 meters above water level