The way points of this bicycle route:
Ride over the berms or jump the gate - head off northish along fire trail 10B. Take plenty of water.
Cinder road - gets quite hot and dusty
Turn right at trail 10d
Down hill from here - track condition quite poor in places - trees, sand and rocks
Stop and enjoy the view of O'Hares Creek
Nasty climb back up to trail 10b
Turn left for trail 10b and head back east(ish)
The trig is around here someplace
Turn left for another loop or head straight on for return
The end.