The Baie d’Ad-Dakhla is a 37-kilometre long bay, separated from the Atlantic Ocean by a dune system, featuring intertidal seagrass beds, algal plains, and salt and sand pans. It hosts high botanical diversity, including rare, vulnerable, and endemic species of the Macaronesian, Moroccan, and Saharan regions. It supports the vulnerable dwarf eelgrass (Zostera noltii), which provides habitat for over 120 mollusc species, including the endemic crustacean Cerapopsis takamado, and 41 fish species. The bay marks the northernmost range of the Atlantic humpback dolphin (Sousa teuszii) and is Morocco’s second most important wintering site for migratory waterbirds, with nearly 60,000 birds recorded between 1995 and 2000. Key species include the Caspian tern (Hydroprogne caspia), the lesser black-backed gull (Larus fuscus) and the ringed plover (Charadrius hiaticula). Fishing and tourism drive the local economy, but expansion of these and other activities threatens the Site, particularly through pollution. A harbour under construction 12 km away may disrupt its hydrological and sedimentary balance. While no formal management plan exists, efforts are underway to establish conservation and aquaculture zones to ensure the site’s long-term sustainability.