Fodor's Expert Review Tallman Mountain State Park
Piermont
Bird-watchers search the skies for migratory birds such as great blue herons and American avocets at the 500-acre Piermont Marsh, part of Hudson River National Estuarine Research Reserve, itself part of Tallman Mountain State Park. The park is open daily from dawn to dusk, and features a running track, tennis courts, playing field, cross country skiing, walking and hiking trails, and picnic areas.