3 feet wide, machine built mostly but about a kilometre of true single track. Well built drainage and a very cool suspension bridge as well as a few other bridges. Some roots but essentially a beginner trail. The lake is very warm and has a nice beach at one end with a cool old driftwood root-ball. Definitely go for a swim if its a nice day. Also well worth the 6.5KM ride or drive up to Mary's Falls which is serviced by the same road as Warren Lake.