Open year-round, dawn to dusk. Breakheart Reservation is a 640-acre hardwood forest with jagged, rocky outcroppings, two fresh-water lakes, and a rambling section of the Saugus River. Seven rocky hills, over 200 feet high, provide vistas of Boston, southern New Hampshire and central Massachusetts. An extensive trail system through the woodlands guides visitors to various areas of the reservation. Fishing in Silver and Pearce Lakes, hiking the trails and birdwatching by the Saugus River are popular year-round activities.
Parker River National Wildlife Refuge was established in 1942 to provide feeding, resting, and nesting habitat for migratory birds. The refuge occupies 4,662 acres on the southern two-thirds of Plum Island, a barrier island on the Northeast coast of Massachusetts, and is administered by the US Fish and Wildlife Service, a federal agency. Parker River is one of over 540 Refuges in the National Wildlife Refuge System, a national network of lands dedicated to "wildlife first."
Thacher Island National Wildlife Refuge is home to herring and great black-backed gulls. The refuge serves as a stopover site for songbirds and other migrants to rest and feed during seasonal migration. Off-shore habitats are used by seals, waterfowl, loons, grebes, cormorants and alcids.