Monomoy National Wildlife Refuge:
Also in Chatham (from Fodors)
Monomoy National Wildlife Refuge is a quiet, peaceful place of sand and beach grass, tidal flats, dunes, marshes, freshwater ponds, thickets of bayberry and beach plum. Several groups conduct tours of the islands, including the Massachusetts Audubon Society, many with a focus on bird-watching. In season, the Rip Ryder ((508/945-5450. www.monomoyislandferry.com) will take you over from Chatham for bird- or seal-watching tours; private charters are also available. Another excellent option is Monomoy Island Excursions (508/430-7772), which offers seal and seabird tours and boat trips out around Monomoy Island, leaving from Saquatucket Harbor on a 43-foot high-speed catamaran. Outermost Adventures (508/945-5858. www.outermostharbor.com) also provides water taxi services out to Monomoy Island and offers fishing, birding, and seal-watching cruises
New York Times link about Chatham:
http://travel.nytimes.com/2009/03/06/travel/escapes/06Capecod.html?scp=1&sq=chatham,%20cape%20cod&st=cse
Link to New York Times article about Chatham off season Sounds of Silence on Cape Cod 'To enjoy a Cape Cod winter you must close your eyes and listen.'