Park at Huntington Park and follow the gravel trail to the northwest. Check on your left, and you'll see the trailhead. This trail is also known locally as the John Street Trail due to its proximity to the major street to the south.
This trail includes log jumps, steep valleys, downhill ruts, low branches (more like tree trunks), large fallen trees, and a narrow path with a 12 ft drop-off on the right to the river bed. Most of it is intermediate, but the difficult, and dangerous, parts are for more advanced cyclists.