Coast Guard Petty Officer 2nd Class Kendall Smith, right, watches as Australian navy Able Seaman Clearance Diver Brett Hain sounds a pile with a hammer as a structural integrity test during a pier maintenance training mission as part of Rim of the Pacific 2016 at Joint Base Pearl Harbor-Hickam, Hawaii, July 12, 2016. Smith is a diver. Navy photo by Petty Officer 1st Class Charles E. White