Grotta Azzurra

Cave in Capri

CC BY-SA 3.0 / Colling-architektur

The Grotta Azzurra, or Blue Grotto, is a famous sea cave located on the coast of the island of Capri in southern Italy. Known for its strikingly vivid blue water, the cave is a natural wonder that has been drawing visitors for centuries. The grotto’s unique color is caused by sunlight entering through an underwater cavity and shining through the seawater, creating a brilliant blue reflection that illuminates the cave. Measuring about 60 meters long and 25 meters wide, the entrance to the grotto is small and low, so visitors typically enter in small boats, adding to the magical, almost secluded experience.

Historically, the Blue Grotto was known during Roman times, as evidenced by ancient statues discovered on its floor, suggesting it was used as a marine nymphaeum (a sanctuary dedicated to nymphs). After falling into relative obscurity for centuries, the grotto was rediscovered in the early 19th century by German writer August Kopisch, who documented its beauty, bringing it back into public attention. Since then, it has been one of Capri’s top tourist attractions, captivating poets, artists, and travelers with its ethereal, otherworldly ambiance.

Visiting the Blue Grotto is an experience shaped by both nature and human ingenuity. Boats operate under specific weather conditions, as the narrow entrance can become hazardous during high seas. Once inside, the glow of the water creates an almost surreal environment, where visitors feel as though they are floating in a pool of liquid light. The combination of the grotto’s natural beauty and its historical significance makes it not just a sightseeing destination but also a place of deep cultural and mystical allure.

The Grotta Azzurra appears in our Complete Guide to Visiting Capri!

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