Hannah Scholes, Davis-Monthan Outdoor Recreational pool Aquatic Center swim instructor, directs a swim student toward her during the Dolphin swim course level 1 lesson at the Outdoor Recreational pool Aquatic Center at Davis-Monthan Air Force Base, Ariz., June 19, 2014. Level 1participants learn how to tread water and float by using combined arm and leg actions. (U.S. Air Force photo by Airman 1st Class Cheyenne Morigeau/Released)