".A variety of different molluscs, crustaceans, insects, fish and birds call the riparian zone their home with a variety of life living near on in the creeks of the Royal National Park.Long-finned eels ("Anguilla reinhardtii") which migrate from oceanic spawning grounds as babies and adults mature in the creeks and streams of the Royal National Park and can often be seen in the murky depths of pools and ponds along freshwater courses such as the Hacking River.