Naval Air Warfare Center Aircraft Division (NAS).  Fun on the water:  Fish the Bay Charters, Samuel M. Bailey Tours, Smith Island Cruises, St. Clements Island Water Taxi.  Museums and Historic Sites:  Patuxent River Naval Air Museum, Solomon's Island, Cecil's Mill Historic District, Cecil's Old Mill  Chesapeake Bay Field Lab, Drayden African-American Schoolhouse, Historic St. Mary's City, Old Jail Museum, Piney Point Lighthouse Museum & Park  Point Lookout State Park, Lighthouse & Civil War Museum, 
Calvert Marine Museum  Sotterley Plantation, St. Clements Island-Potomac River Museum, Tudor Hall, Chesapeake Lighthouse.  For swimming:  Elms Beach Park, Greenwell State Park, Myrtle Point Park, Piney Point Lighthouse Museum & Park, Point Lookout State Park, St. Clement's Island State Park, Calvert Cliffs State Park.  For Golf:  Breton Bay Golf & Country, Wicomico Shores Golf Course.  For Motor Sports:  Maryland International Raceway  Budds Creeks.