Narragansett Sailing and Boating School will hold a Powerboat Instructor Clinic from April 23-27 at Safe Harbor, Greenwich Bay, Warwick. The clinic will allow participants to become a Recreational Powerboat Association (RPBA) certified instructor. Only U.S. Coast Guard captains can apply and part-time employment will be offered upon completion. To learn more, visit www.narragansettsailingschool.com.