This trail is an easy route which parallels the Linear Trail, the Big Blue River, and the Kaw River. Most people use the trailhead at the north end of the trail, at the corner of Hofman and Hwy 24. From the north trailhead, you have to go south on the paved Linear Trail for about 200m and then you'll see a dirt singletrack peel off to your left and proceed into woods. The singletrack is very easy with some sharp turns and a few short ups and downs. You'll parallel the Big Blue River for a little under a mile where it will empty into the Kaw River, then the route will follow the Kaw west.
There are several spots where the loops intersect, so I stay right at each intersection to make sure you're staying on the correct trail. After you've gone approximately 2.5mi, you start to find some slightly more technical terrain. Slightly steeper inclines with rock obstacles and the occasional narrow bridge.
Wherever you choose to turn around and begin your trek back, I recommend continuing to keep right at all of the trail intersections. There's a little hidden gem along the return route that offers a nice place to sit and watch the Kaw River.