Thomsons Lake

Thomsons Lake is a seasonal freshwater lake and nature reserve within Beeliar Regional Park in Beeliar, City of Cockburn, Western Australia, about 25 kilometres south of Perth. Listed as a Ramsar wetland of international importance, it is one of the best-preserved wetlands on the Swan Coastal Plain. The lake supports diverse waterbirds and fringing woodlands, offering birdwatching and nature walks in a protected conservation setting.

Visitors can expect a tranquil natural wetland surrounded by banksia woodland and melaleuca fringes with open water that varies seasonally. A short walk trail leads from a car park to a bird hide and viewing platform overlooking the lake. The setting is quiet and undeveloped, focused on nature observation, photography and walking. There are interpretive signs explaining wetland ecology. No swimming or boating facilities are provided.