US Coast Guard Auxiliary Onset-Marion Flotilla 6-3, which bills itself as the nation’s oldest continuously operating flotilla, is offering a seven-week course in boating skills and safety. Lesson topics covered include boat handling and safety, terminology, navigation rules and signage, radio communications, weather, and instruction in lines and knots. “Many people think boating rules and safety apply only to motorboats,” Warren L. Washburn, a Marion native and 41-year member of the auxiliary, said in a phone interview. “But it applies to everything: sailboats, kayaks, and canoes and even paddleboards.” The course will take place on Thursdays from 7 to 9 p.m. and begins Feb. 27 at the flotilla’s office at 13 Atlantis Drive. Cost is $40, due on the night of the first class. For more information, call Warren L. Washburn at 508-789-3680 or e-mail email@example.com.