160513-N-SB201-027 GROTON, Conn. (May 13, 2016) Capt. Bruce Derenski is piped ashore for the last time during his retirement ceremony aboard the historic ship Nautilus at the Submarine Force Museum and Library in Groton, Conn. Derenski's retirement ceremony marked the conclusion 35 years of honorable service. (U.S. Navy Photo by Chief Mass Communication Specialist Steve Owsley/Released)