Bayswater Brook was a natural brook that ran through Bayswater and nearby suburbs, linking various swamps and creeks in the area. In the 1920s, due to development, it was modified into a network of drainage channels, with some covered sections and some open sections. The brook discharges into the Eric Singleton Bird Sanctuary, which discharges into the Swan River. The Eric Singleton Bird Sanctuary is an artificial wetland, created after the surrounding area was used as a landfill between 1972 and 1981. The wetland had significant environmental problems until it was rehabilitated in 2015. Nearby is Gobba Lake, an artificial deepwater lake named after Gino Gobba, a former City of Bayswater councillor. It was made for a clay pit used by Walkenden's Brickworks. Gobba Lake also underwent rehabilitation to make it more attractive to flora and fauna, and make it better for recreational use by humans.