Platja de ses Salines, Sandy beach in Sant Josep de sa Talaia, Spain.

Platja de ses Salines, also called platja de Mitjorn, is a long open beach of fine white sand in the municipality of Sant Josep de sa Talaia, by the village of Sant Jordi de ses Salines. It stretches over four kilometres, backed by dunes, savin junipers and pines, with rocky coves and natural pools at its eastern end. The seabed slopes gently: about 0.85 m deep 25 m from the shore and 1.65 m at 50 m. Offshore lie the islets of els Freus and Formentera.

The beach lies within the ses Salines natural park, declared an Area of Special Natural Interest in 1991. State law 26/1995 of 31 July made ses Salines a Nature Reserve, and law 17/2001 of 19 December established the park, now managed by the Balearic Government. The park covers 1,786.52 hectares of land and 13,611.80 hectares of sea.

Locals also call it Platja de Mitjorn, and in summer it becomes Ibiza's fashionable beach, a meeting point for wealthy visitors, celebrities and nightlife fans. The name ses Salines comes from the adjacent salt pans, whose ponds attract water birds.

The beach offers access to showers, restaurants, and lifeguard coverage during summer months. Public transport and car access from Ibiza Town are the most straightforward ways to reach it.

The adjacent salt flats form a protected natural area where bird species regularly stop to rest and breed. This ecosystem developed from centuries of salt production that shaped the terrain.