NAHANT – Nahant Sailing Program (NSP) instructors will be at the sailing room on Tudor Wharf on Thursday and Friday from 9 a.m. to noon to register new or returning students.The two registration sessions are last opportunities to register for the town-supported program, which begins Monday, July 2.All students must pass a swim test. No previous sailing experience is required. Children should wear a bathing suit and bring a towel and T-shirt on the first day of class to participate in the swim test. Children do the swim test in pairs. Although they wear a life vest, it must be removed temporarily while treading water. Instructors conduct all swim tests at the wharf.Anyone who cannot attend the registration but intends to enroll in the program should contact Sailing Program Committee member Dunbar Livingston at (781) 599-5515.