August 11 Excursions with Captain Rachel aboard the Roughwater, a Chesapeake working waterman's boat, departs 2:30 p.m. and 3:30 p.m. from Lore Oyster House on the main campus of the Calvert Marine Museum, Solomons, Md., $15, preregistration required, limited to six passengers per outing, (410) 326-2042 ext. 41. www.calvertmarinemuseum.com.
