We have some of the most wonderful range of off road terrain around! From fires trails to hard core single track, Margaret River has it all. For a leisurely ride from the Surfers Retreat you join the bike path that will let you join the Wadandi Track. You literally turn left and go to the end of Wilderness road and your on the car free path.
The Wadandi track is an old railway line and goes from Witchcliffe through Margaret River to Cowaramup. Its relaxed ride that cross many historic bridges with lots of spots to stop and take in the beauty of the changing landscape, from farmlands to forrest.
If your looking for something a little more hard-core, check out Middle Earth in Metricup. They've created a single track paradise with 24kms of home made track.
Tours are also a good option. If you want to get off the beaten track, get on a fat bike that will allow you to explore the sandy spots!