Occupying more than 20,000Ha in the Gascoyne region of Western Australia, Lake MacLeod is a vast inland salt lake that supports a system of wetlands featuring one of the largest inland mangrove communities in the world. These communities provide a natural habitat for a countless variety of birds, fish and other animals. The wetlands are serviced by ocean tides, which flush seawater into channels below and out through vertical shafts, sinkholes, and other surface vents within the lake.