Home to one of Australia’s best bike tracks for children – with exciting new twists, turns and challenges to help young riders learn safe riding skills. Hills, curves and bridges, stop and go signals, a tunnel and refuelling station. http://www.sydneycycleways.net/projects/sydney-park-bike-track/
It's a busy place, with lot's of muggles during the weekend, so you need to be careful and choose an appropriate time. The GZ is in a quieter area.