The park was established to protect the remaining mangrove forests and as a refuge for estuarine crocodiles and resident and migratory water and shore birds; breeding ground for fish and prawns; research area for the conservation of mangroves and wildlife; and as an environmental education centre.
Philippines
Agusan Marsh Wildlife Sanctuary
It is the largest and least disturbed freshwater wetland in the country. The marsh plays an important ecological role in Caraga Region and has a complex network of marshes, rivers,
