ABOARD CGC ACACIA (March 19, 2004)? Coast Guard Seaman Jimmy Allen, Seaman Daniel Nietling and Seaman Apprentice Nicholas Cimarossa observe Chief Boatswains Mate William Miller as he demonstrates how to use a reaving line hook on a third class buoy aboard the Coast Guard Cutter Acacia. A reaving line hook is used to place a line through the bail of a buoy so that the hoisting hook may be easily latched on to pull the buoy out of the water. Acacia was in the Chicago area to check and replace buoys for the 2004 Great Lakes shipping season. Acacia is a 180-foot sea going buoy tender built in 1944 home ported in Charlevoix, Mich.