The Horsehead Wetlands Center, 600 Discovery Lane, Grasonville, 410-827-6694. The center, set on a 500-acre peninsula just across Prospect Bay from Kent Island, highlights Saltmeadow hay, marsh hibiscus, phragmites and assorted bay grasses. Blinds and observation towers offer an undisturbed view of the wetlands and its inhabitants. Hundreds of waterfowl populate the five ponds on the grounds. There are four miles of walking trails through marshes and woodlands, and canoes are available to explore the new Marshy Creek Canoe Trail. The center, operated by the Wildfowl Trust of North America, is open daily.