This trail starts where Whipple Creek (the actual creek) intersects the Blue Trail and the double bridges. You head east and go up the stepped trail. There are several 4" round logs in the trail to keep it from eroding. Given the grade and lack of run up, most people end up walking this part of the path.
After clearing the logs, mount your bike and pedal up the hill. There is a tight left 180 degree turn, then another right 180. You then have a slight incline for a spell. Not too much farther and you'll see the start of Osborn Spur on your left. Stay on the Whipple Creek Way trail for a spell, and you'll see the end of Osborn Spur on your left.
Not too long after Osborn Spur, the forest opens up to a view of Whipple Creek Riding Center and horse stables. The trail continues along the left of the fence.
The trail looks like it ends where the trail t-bones the white fence. In reality the trail runs between the white fences. There is a ~9 foot wide path that takes a 90 degree right turn and then a hard left, then a hard right, and puts you at the Whipple Creek Riding Center driveway.
You can then turn around and head back to Whipple Creek Park or you can head north on NW 11th Ave and connect to the Fairgrounds Park to Whipple Creek Park Connector
and run over to the Fairgrounds Park Path
use their restrooms, get looked at oddly by young children on jungle gyms and the like. They don't see mud covered adults on bicycles very often.
Don't forget to roll through Osborn Spur. It is the reason most people roll up the Whipple Creek Way trail.
NOTE: Osborn Spur is a nice intermediate technical addition to this otherwise tame trail. I encourage you to take advantage of Osborn Spur any time that you head this way. It can be run in either direction, and as a loop.