Located less than 5 kilometres (3.1 mi) from the city of Perth and situated alongside the Mitchell Freeway, it runs approximately north-west to south-east towards the Swan River and consists of 70 hectares (170 acres) of mainly open shallow water with an island of 1.3 hectares (3.2 acres) in the south-west corner. The 110 hectares (270 acres) of lake and the surrounding parklands are known as the Lake Monger Reserve.
The lake is used extensively for recreation and is a major tourist attraction with up to 12,000 visitors per week. Activities include bird watching and exercise.
A 3.8-kilometre (2.4 mi) paved walking/cycling track encircles the lake which takes about 50 Minutes to traverse by foot at Normal waking speed. Ample car parking, playground equipment and barbecue facilities are also provided.