The Blue Trail at Centennial Park is undoubtedly the toughest, what with its steep inclines and declines, and its rockiness. The hairpin section of the trail is always a "I don't want to do this, but I should" portion. It never fails to kick your butt at the end of a good hike. One can access it, however, from a couple different bypasses. One of those bypasses is home to this cache. Look just south of the hairpin trail.