The Site of Biological and Ecological Interest of Khenifiss is located on the Atlantic coast in southwest Morocco, between the cities of Tan Tan and Tarfaya, was classified as a national park in 2006 on an area of 185.00 ha. It is composed of a marine part, the Khenifiss Lagoon, a wetland of international importance that has been on the list of the Ramsar Convention since 1980, and a terrestrial part composed of sebkhas and highlands with vegetation characteristic of the Saharan zone.

The Khenifiss site represents the only Saharan lagoon in North Africa and the largest along the Moroccan Atlantic coast. It is home to 30 species of macroalgae and an important wealth of marine invertebrates. It is an important feeding, spawning and rearing site for fish. The wildlife includes three bird species of global importance: Casarca Shelduck, Marbled Teal, and Audoin's Gull. The lagoon is also a stopover site for a large number of migratory birds from the western Palearctic. It is sometimes home to more than 20,000 waterbirds during the wintering period.

The terrestrial part of Khenifiss includes several sebkhas offering a remarkable landscape and typical Saharan vegetation. The presence of the Cuvier's Gazelle has also been reported there.

Through the diversity of its natural landscapes: marine and coastal coastline, lagoons, sebkhas, dunes, cliffs and highlands, Saharan vegetation and steppes, the future park is predisposed to play an important role in the development of ecotourism in the region. The cultural treasures of the territory, several of which are centuries old, bear witness to the conservation of ancestral local traditions and the heritage identity of the local populations attached to their nature and culture.