Father Collins Park is approximately 3 km inland from Baldoyle Bay, with its estuaries and wetlands, which are protected by the National Parks and Wildlife Service (Ireland).

Declared a Statutory Nature Reserve in 1988, the inner estuarine part of the estuary and wetlands of Baldoyle Bay are of high significance protected as a Special Area of Conservation (SAC). They support several habitats that are listed on the EU Habitats Directive. Under the Ramsar Convention, it is designated as a wetland of international importance. Consequently, during the seasons of migration, the open lands of Father Collins Park continue to host migrating birds. Undisturbed lands remain an important refuge and hub for Arctic and European migratory birds. 

Of particular interest is the internationally important population of brent geese which inhabit the estuary.