+The Blue Grotto is a mesmerizing [sea cave](/wiki/sea_cave) on the coast of [Capri](/wiki/capri), Italy. Sunlight, filtering through an underwater opening, illuminates its waters with an ethereal, glowing blue light, making it a celebrated natural phenomenon.
+## See also
+- [Grotto](/wiki/grotto)
+- [Italy](/wiki/italy)
+- [Tourism](/wiki/tourism)