Known as Nookampka to the local Meru people, shallow Lake Bonney ringed by large, drowned red gums, whose stark white branches are often festooned with birds. If you're feeling uninhibited, ditch your garb at Pelican Point Holiday Park (www.riverland.net.au/pelicanpoint), a nudist resort on the lake's western shore.
There are wildlife reserves with walking trails and camping (per vehicle $12) at Moorook Game Reserve on the road to Loxton, and Loch Luna Game Reserve across the river from Kingston-On-Murray: see www.parks.sa.gov.au. Loch Luna backs onto the famous Overland Corner Hotel. Both reserves have nature trails and are prime spots for a bit of twitching or some canoeing. Book camping permits online.
There are also walking trails leading off from the Overland Corner Hotel.