Trails are open dawn to dusk, seven days a week. The Nature Center is open 9am-5pm, seven days a week, except major holidays. The Nature Store is open Tuesday-Saturday, 9am-5pm and Sunday, noon-5pm, except major holidays.

From I-684, take Exit 3N. Turn north onto Route 22. At the first light, turn right onto Route 433. Go 2 miles to the stop sign at John Street. The entrance gate is on the left. From the Merritt Parkway (no commercial vehicles), take Exit 28 in Connecticut. Turn north onto Round Hill Road. After 1.5 miles, turn left onto John Street. The entrance gate is on the right.

Audubon Greenwich is comprised of 11 other sanctuaries totaling 686 acres of woodlands, meadows, and wetlands, and 15 additional miles of hiking trails. Ecosystems at the sanctuary include large open fields, successional thickets, young and mature forests of mixed oak, beech, and maple, Mead Lake, shrub swamps, several vernal pools, Indian Spring Pond (human-made and present throughout the year), red maple swamps, and a small grove of hemlock trees. Also at the sanctuary are a beautiful old apple orchard, honeybee hives, wildflower meadows, a butterfly garden, and bird feeding station. The east branch of the Byram River crosses the property and was dammed in the nineteenth century to create shallow Mead Lake, home to frogs, water snakes and turtles. You will find a boardwalk and two bird blinds on the Lake Loop Trail. Noteworthy wildlife at the Center includes river otter, muskrats, wood ducks, white-tailed deer, coyotes, flying squirrels, nesting bluebirds, wild turkeys, bats, and a wide spectrum of reptiles, amphibians and birds. The Center serves as the site for the Quaker Ridge Hawk Watch and is one of the best locations in the Northeast United States to view the fall migration of raptors. Golden and Bald Eagles, Common Ravens and Black Vultures have also been spotted. Seasonal highlights include the late winter movement of spotted salamanders to their breeding pond, spring warbler migration, late summer meadow insects and the nocturnal fall migration of the saw-whet owl.