Bushland and Natural Values

The vegetation type is Sydney Sandstone Complex and its formation was and still is generally that of an Open Forest. Local variations range from the treed canopy on the upper slopes, to part scrub fringing the harbour foreshore. The floristic content of the harbour foreshore is characteristic of coastal headlands, which indicates the influence of the marine environment.

Common species include Eucalyptus botryoides (Bangalay), Angophora costa (Sydney Red Gum), Allocasuarina littoralis (Black She-oak) and Acacia longifolia (Sydney Golden Wattle).

From the beach to the wharf at Chowder Bay there are small areas of sea grasses where there is exposed sandy seabed. Several species of fish and a number of invertebrates are prevalent - making this area a fascinating place to snorkel.  A local seahorse colony can also been viewed while snorkelling. 

Near the barrack and mess buildings and the beaches in the National Park there are a greater diversity and abundance of animals and plants - typical of a shore to which access has been limited. There is also a greater range of habitats such as rock pools and crevices and associated animals, including a relatively large abundance of sea snails.