Petty Officer 2nd Class Donnie Walker and Petty Officer 2nd Class Brian Rodriguez, aviation survival technicians at Coast Guard Air Station Barbers Point watch a training video with Hyun Dai Kim, with the Korean coast guard, during a vertical surface and self repelling exercise at Makapu'u Lighthouse, Oahu, Nov. 16, 2017. Members from the Korean coast guard visited Air Station Barbers Point during a professional exchange as a way to share best practices. (U.S. Coast Guard photo by Petty Officer 2nd Class Tara Molle/Released)