Ses Salines d'Eivissa i Formentera

Ses Salines d'Eivissa i Formentera Natural Park protects the marine channel and coastal habitats between the islands of Ibiza and Formentera, encompassing approximately 3,000 hectares of terrestrial habitats plus extensive marine zones including some of the most important Posidonia seagrass meadows in the Mediterranean. The park includes the historic Ibiza salt flats that have produced salt for over 2,500 years, the shallow turquoise waters of the channel, and the beaches and dune systems of southern Ibiza and northern Formentera. The Posidonia meadows were declared a UNESCO World Heritage Site in 1999.

The salt flats support flamingo populations and breeding black-winged stilts and Kentish plovers, while the marine waters host bottlenose dolphins, loggerhead sea turtles, and exceptional fish diversity in the seagrass meadows. The Posidonia meadows function as fish nurseries and provide the clear water conditions that make the channel famous for its turquoise color.

The UNESCO World Heritage Posidonia oceanica meadows between the islands are among the most extensive and well-preserved in the Mediterranean, with individual plants estimated to be thousands of years old. Terrestrial vegetation includes dune communities, salt marsh, and Mediterranean scrubland.

The shallow channel between Ibiza and Formentera represents a submerged platform where the Posidonia seagrass has accumulated organic sediment over thousands of years. The salt flats occupy natural coastal depressions enhanced by centuries of human engineering.

Semi-arid Mediterranean island climate with hot dry summers, mild winters, and approximately 350 millimeters of annual rainfall. The clear skies and shallow waters create the intense turquoise coloration visible from the air.

Salt production at Ses Salines dates from Phoenician times (6th century BCE) and continued through Carthaginian, Roman, and medieval periods, making it one of the oldest continuously operating salt works in the Mediterranean. The salt was central to Ibiza's economy for millennia.

Designated a Natural Park in 2001, with the Posidonia meadows receiving UNESCO World Heritage status in 1999 as an extension of the original nomination. The park protects both the marine ecosystems and the cultural heritage of salt production.

The beaches of Ses Salines (Ibiza) and Illetes (Formentera) rank among the finest in the Mediterranean, with their crystal-clear turquoise waters directly attributable to the Posidonia meadows filtering particles. The salt flat viewpoints and historical infrastructure provide cultural interest.

The Ibiza salt flats are accessible from Ibiza town (15 minutes south). Formentera is reached by ferry from Ibiza (30 minutes). The marine park surrounds boats crossing between the islands. Beach access is straightforward from both islands.

Posidonia meadow protection from anchor damage is critical, with mooring buoy systems and strict no-anchoring zones protecting the UNESCO-listed seagrass from the intense pleasure boat traffic between the islands. The balance between maintaining the world-famous beach tourism economy and protecting the marine ecosystem that creates the water quality on which that tourism depends is the park's central management challenge.