Petty Officer 2nd Class Brian Rodriguez and Petty Officer 2nd Class Donnie Walker, aviation survival technicians at Coast Guard Air Station Barbers Point, prepare gear to use during a vertical surface and self rappelling exercise with members from the Korean coast guard 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)