You might see a feral pig snuffling in the underbrush on this two-hour, 3-mile loop, which passes through pine forest, eucalyptus stands and scrub scored with pig trails. It’s fairly easy and fun on a mountain bike. The trailhead is at the hunter check station, 5 miles up Waipoli Rd. Walk three-quarters of a mile down the grassy spur road to the left to a gate.