1Cala Mariolu, Sardinia – Italy

Accessible mostly by boat, Cala Mariolu is one of Sardinia’s secret treasures. Its pebble-soft sand and clear, shimmering waves make it a natural swimming pool carved into the coastline.

The clarity of the water is astounding—you can see fish drifting beneath you as if suspended in air. For snorkeling and pure turquoise escapism, this beach is unbeatable.

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