A Coast Guard lieutenant commander prepares for a shackle pin to be perfectly heated prior to commencing the heat-and-beat competition as part of the 2018 Buoy Tender Roundup Olympics at Coast Guard Station Juneau, Alaska, Aug. 22, 2018.Coast Guard crewmembers use sledge hammers to seal a rivet pin to a shackle during the heat-and-beat competition. U.S. Coast Guard photo by Petty Officer 1st Class Jon-Paul Rios.