The Friends of Belgrave Lake Park meet every Tuesday from 10am to 2pm.
Belgrave Lake Park has high local significance as the site of the reservoir and pipeline which, from 1893-1924, supplied water to the town of Dandenong, and after that to the farmers of Lysterfield. The Park had significance too, as a popular tourist destination where there was picnicing, swimming and camping. From 1939 the Park was associated with the Belgrave Auto Camp built on land adjacent to the Reservoir. The original kiosk, a stone and log cabin, which served both the Auto Camp and the Reserve, remains.
Volunteers gather each week to remove weeds plant locally indigenous plants and conduct work to prevent erosion of the Monbulk Creek which is habitat to platpus.