2 Best Sights in Cape Cod, Massachusetts

Encompassing nearly 1,000 acres, this reserve is home to more than 300 species of birds. A jewel of Mass Audubon's statewide network of wildlife sanctuaries, Wellfleet Bay is a superb place for walking, birding, and watching the sun set over the salt marsh and Cape Cod Bay. The Esther Underwood Johnson Nature Center contains six aquariums that offer an up-close look at marine life common to the region's tidal flats, marshes, and ponds. From the nature center you can hike five short nature trails, including a fascinating boardwalk trail that leads over a salt marsh to a small beach, or you can wander through the pollinator garden.

This 2,500-acre preserve includes the Monomoy Islands, a fragile 9-mile-long barrier-beach area south of Chatham. A haven for bird-watchers, the refuge is an important stop along the North Atlantic Flyway for migratory waterfowl and shorebirds—peak migration times are May and late July. It also provides nesting and resting grounds for 285 species, including gulls—great black-backed, herring, and laughing—and several tern species. White-tailed deer wander the islands, and harbor and gray seals frequent the shores in winter. The only structure on the islands is the South Monomoy Lighthouse, built in 1849. The visitor center offers maps and some guided walks in the summer (open June through Labor Day.)