Estany d'Es Peix beach, Shingle beach in Estany del Peix, Formentera, Spain

Estany d'Es Peix beach lies on the island of Formentera in the Balearic Islands, Spain. Its sands are very fine and somewhat muddy, and the beach is sheltered from the open sea, connected to it only through a narrow passage called Sa Boca.

The beach lies in an area with remains of ancient Roman salt deposits, which were once used for food preservation during classical Mediterranean trade. This salt extraction was an important activity in the region during ancient times.

The lagoon behind the beach, Sa Boca, is a narrow channel that keeps the water inside sheltered from the open sea, so bathers use it as a shallow alternative to the exposed shore. The beach is listed among Formentera's naturist beaches, and bathers there go without swimwear.

The beach is accessible through marked pathways from the PM-820 road, with a parking area near the entrance. Visitors are advised to wear comfortable footwear, as the shingle surface can be uneven and becomes hot in direct sunlight.

The lagoon is connected to the open sea through a narrow passage called Sa Boca, which lets small boats enter. The beach's sand is very fine and somewhat muddy, a detail visitors notice underfoot.