These include: open water and ditches, reed beds. permanent and winter flooding marsh, uncut grassland, oak and willow scrub and woodland with bluebells and lichen. Along the Bulverhythe Beach you will see sandstone cliffs, rock pools, very extensive and beautiful low tide sand and shingle banks.
The park contains the Combe Haven Site of Special Scientific Interest (SSSI), and the Filsham Reedbed Local Nature Reserve (LNR) which is managed by the Sussex Wildlife Trust. The considerable diversity of flora and fauna includes a number of nationally important species.
Cattle and sheep graze many of the fields through the summer months and help to manage the water meadows. Cereals are grown in some of the fields on higher ground.