Park in Attical village or at the Gamekeepers Lodge at the bottom of Banns Road.
This is a good technical trail which requires a good helping of nerves to stop from dabbing on the way down. Navigation is simple, a small section of hike-a-bike just after the ford on the way up but mainly all rideable. Approximately 10km, should be up in 40mins and down in 25mins.
Map 29 of the Mournes or the 1:25,000 Leisure Map