Massachusetts' southern coast, which runs along Plymouth and Bristol counties, abuts Buzzards Bay, a sheltered body of water popular for swimming, boating, fishing and other water activities.
Horseneck Beach State Reservation - A 2-mile long beach in Southern Massachusetts
Nantasket Beach - The historic beach is part of a state reservation, and is located in Hull, south of Boston
Plymouth County Beaches - A roundup of beaches south of Boston; the guide includes practical info, such as parking rates and directions
Quincy Shores Reservation - A 2.3-mile Massachusetts beach in Quincy
NESurf.com - This site offers the latest news and announcements about surfing in New England
Coastal Trails of Massachusetts - Not all of these spots have swimming, but this is a great list of scenic trails along the Massachusetts shore, compiled by the state