The Royal National Park, is the second oldest national park in the world and this diverse park offers everything from beaches to rainforest. Audley is popular with day-trippers with extensive picnic areas, boat hire facilities, a bike track and a visitor's centre. It is also the gateway to the Royal National Park. The suburb of Sutherland offers coastal relaxation and cosmopolitan luxury and for something a little different visit Australia's only nuclear reactor at Lucas Heights.