Coming September 3, 2018. One of the few races to be run on National Park Land. The 49th annual Saguaro National Park Labor Day 8-Miler & 5k Walk/Run is race that gives you a feel of the old Southwest. Choose from either an 8 mile course or a 5K course taking you through the hot, rolling hills of Saguaro National Park East in Tucson, Arizona, home to the nation’s largest cacti. Yes, it will be hot and humid, but the race starts early (walkers start at 6am!), and there will be 4 aid stations with plenty of fluid to keep you hydrated. This Labor Day, burn off some calories before your BBQ at the Saguaro National Park Labor Day 8-Miler & 5k Walk/Run, and run among the cacti!