150213-N-RX128-016 MAYPORT, Fla. (Feb. 13, 2015) Swimming instructor Erin Crabtree explains the proper form for a freestyle stroke to Tyler Matthews during the first day of the 2015 Navy Wounded Warrior Safe Harbor Introductory Adaptive Sports Clinic at Naval Station Mayport. The clinic teaches wounded warriors competition style techniques for the upcoming tryouts for the 2015 Wounded Warrior Games and rehabilitation methods from injuries sustained while serving as active duty. (U.S. Navy photo by Mass Communication Specialist Seaman Nathan J. Lang/Released)