The Greenwood Lakes wetland with high conservation values is found in Forestdale. Visitors to the park may undertake bushwalking, walk the dog, bird watching and use the picnic tables, boardwalk and viewing platform provided A large lakes and terraced banks along Oxley Creek were created by commercial sand extraction operations in the area.
In the 2011 census the population of Forestdale was 2,520, 48.6% female and 51.4% male. The median age of the Forestdale population was 39 years, 2 years above the national median of 37. 71.4% of people living in Forestdale were born in Australia. The other top responses for country of birth were England 6.3%, New Zealand 3.5%, Taiwan 1.9%, Vietnam 1.4%, South Africa 1.2%. 81.7% of people spoke only English at home; the next most common languages were 2.7% Mandarin, 2.3% Vietnamese, 1.4% Spanish, 1% Cantonese, 1% Greek.