If you've ever seen a photo of turquoise water in Europe and assumed it was Photoshopped, you might have been looking at Formentera. The southernmost of the Balearic Islands has water clarity that genuinely competes with the Caribbean — the result of a Posidonia oceanica seagrass meadow, declared a UNESCO World Heritage Site, that filters and oxygenates the surrounding sea to a transparency unique in the Mediterranean.
The island is small (just 19 km long) and the beaches are accessible by bike, scooter or short drive. Below are the ones to prioritise — from the postcard classics to the quieter coves that locals still hold close.

