The Site comprises 74 high mountain wetlands, including permanent rivers and streams, freshwater springs, small glacial lakes and non-forested peatlands, in a well-preserved landscape. These wetlands provide an important concentration of biodiversity and water reservoir within the Alpine biogeographic region. They support numerous endemic Pyrenean species, as well as threatened plant and animal species such as the endangered Aurelio’s rock lizard (Iberolacerta aurelioi) and the near-threatened Pyrenean brook salamander (Calotriton asper) and Eurasian otter (Lutra lutra). With its location at the headwaters of the Arinsal basin, the Site regulates and prevents floods and ensures drinking water supply to the parish of La Massana. The main human activities affecting the Site are related to tourism and include hiking, hunting and fishing. The park has visitor facilities such as a viewpoint at Roc de la Sabina, interpretative trails and an extensive network of footpaths. A management plan was approved in February 2018, which sets the conservation objectives and regulates the activities within the park.