Occoquan Bay National Wildlife Refuge sits on the Potomac River, a major tributary to the Chesapeake Bay. The refuge includes a one-mile wildlife drive and over three miles of hiking trails along grasslands, tidal marshes and the river's edge. Over 650 species of plants and 200 species of birds have been observed at the refuge, which is one of the largest open areas remaining in northern Virginia.
Occoquan Bay National Wildlife Refuge's diverse grasslands and marshes attract songbirds, raptors, waterfowl and butterflies that depend on meadows and open water for their food, nesting sites, and a place to rest. Visitors share this feeling of respite as they hike trails and watch wildlife drawn to the one-square mile refuge, a sanctuary in an urban setting.