Operated by the Wildfowl Trust of North America, the 500 acres of the Chesapeake Bay Environmental Center will open your eyes, ears, and mind to the wildfowl and waterscapes that characterize Maryland's Eastern Shore. The aviary and waterfowl ponds are full of ducks, geese, swans, and birds of prey. Pause a moment in a secluded blind and explore native woodlands, marshes, and meadows along 4 mi of trails. A visitor center and picnic facilities are on the grounds. checked aug 2010 600 Discovery La., Grasonville, MD, 21638. 410/827–6694. www.bayrestoration.org. $5. Daily 9–5, except major holidays.