6The Blue Grotto (Grotta Azzurra)

The Blue Grotto is a magical sea cave on the island of Capri.

Its glowing blue water attracts thousands of tourists each year. However, the entrance is tiny, and visitors must enter on small boats. During high waves or bad weather, the cave becomes extremely dangerous. In the past, people have drowned when boats overturned or crashed against the rocks.
Tourists should always follow safety rules and avoid visiting during rough sea conditions.