The Parks and Wildlife Service protects and conserves the State’s natural environment on behalf of the people of Western Australia. Its key responsibilities include conserving biodiversity and managing the State’s national parks, marine parks and other reserves, which cover a total area of more than 27 million hectares. Western Australia has 100 national parks and 17 marine parks with a diverse array of landscapes and seascapes, from coral reefs and tall forests to deep gorges and open plains of wildflowers. The Parks and Wildlife Service also manages two of the world’s greatest long distance trails: the 1000 kilometre Bibbulmun Track for walkers, and the 1000 kilometre Munda Biddi Trail for cyclists. The agency contributes to national and international programs through national Ministerial Councils, the Natural Heritage Trust and other national programs, the work of organisations such as the IUCN (the International Union for Conservation of Nature), and to the implementation of international conservation treaties in WA.