Coast Guard Station Honolulu 45-foot Response Boat-Medium file photo. HONOLULU — Coast Guard crews and partners are searching for Philip Grenz, a 67 year-old male last seen departing Nawiliwili Harbor, Kauai, towards Haleiwa, Oahu, Tuesday. The mariner is operating the 42-foot sailing vessel Epic with a black-hull and teak deck. Multiple Coast Guard air and surface crews are searching with assistance...