The terrestrial vegetation communities of the park are of high conservation value as they include a range of vegetation types threatened on the New South Wales coast by urban development. To maintain the viability of communities it is essential that the area not become isolated in regard to management and that Bherwerre Peninsula continues to be linked with natural areas in New South Wales. In this regard it is vital that vegetation communities on the Peninsula be managed sensitively and cooperatively.
The majority of terrestrial communities in the park are adapted to periodic fire. In the absence of a natural fire regime, the planned use of fire as a management tool is required to maintain the diversity of vegetation communities.
The park provides the largest stronghold for the endangered Eastern Bristlebird Dasyornis brachypterus in Australia. This species has suffered alarming declines in range through predation by cats and foxes and loss or alteration of habitat. the park also provides habitat for the Ground Parrot Pezoporus wallicus. The Eastern Bristlebird and Ground Parrot have specific habitat requirements, especially with regard to vegetation. The endangered or rare status of these species will require special consideration in terms of research effort. Wetland habitats of the park are not extensive but are significant. Freshwater bodies such as Lake Windemere, Lake McKenzie and Ryans Swamp are vital for the breeding requirements of the Eastern Snake-necked Turtle Chelodina longicollis. The lakes also provide habitat for Black Swans Cygnus atratus, Swamp Harriers Circus approximans and many species of frogs.