This is a great trail for a day hike. You can start and stop/turn-around at many different places along the way. I started near Tijeras Creek GC and turned around at the O'neil Park boundary. There are many places to stop along the creek and explore. My total hike was 6 miles.
Nice and varied trail. Lots of nice short climbs punctuated by rapid descents. Mix of single track and fireroad and you can really go as long as you want.
Fantastic training route, particularly if you are starting back in after a period of inactivity.
Park at Cox Sports Park and drop right in!