You can get a free one at the visitor center, but its real easy to
follow the red, so if you dont want to do the whole lot, you can go from the main visitors center car park up as far as Dixons Hollow jump park.
Just cross the road from Dixons Hollow Jump park, but when you come to where the trailhead restarts dont follow it, look to your right, between you and the road is another little used trail.This winds along the edge of the road, and comes out on the road at a 90 degree bend where the toll booth is, cross the road and follow the fire road that is barried off, at the end turn right, after a few hundred meters you'll pick up the red again ( on right hand side) takes you back. You'll do about 2/3rds in total and the last bit is best IMO.