Water wheel
U.S. Air Force Airman 1st Class Reniro Viguilla, Aerospace Medical Squadron dental assistant, runs in a wheel for the Water Wheel Challenge June 18, 2015, at Moody Air Force Base, Ga. After the Build-a-Boat competition, Col. Chad Franks, 23d Wing commander, gave Airmen an opportunity to compete in the challenge for his parking spot for a week by beating his time of 49 seconds. Viguilla won the challenge for the second year in a row with a time of 34 seconds. (U.S. Air Force photo by Airman 1st Class Kathleen D. Bryant)