Tree planting will be part of a Parks Victoria open day at Toorourrong Reservoir Park near Whittlesea on Sunday.
The park has been closed since being extensively damaged during the Black Saturday bushfires in 2009, and Conservation Volunteers Australia will lead the planting out of about 4000 saplings.
Melbourne Water has reinforced the dam embankment and there is a new and larger ornamental lake, complete with the lilies many visitors will remember from the old pond.
Toorourrong Reservoir Park is on Jacks Creek Road and the open day is from 10am-3pm.
