Bay Circuit Trail
(http://www.baycircuit.org/) a 200 mile network of interconnected trails extending from plum island, newburyport in the north to kingston bay in the south. currently about 150 miles are completed and accessible.
whale watching
The Massachusetts coast offers some of the best whale watching opportunities in the world. The diversity of whale species that can been seen here is only equaled by far off corners of the Earth such as Antarctica, Patagonia, and Alaska. This abundance of whales, combined with the close proximity of both Stellwagen Bank and Jeffrey's Ledge, is no doubt responsible for Gloucester's popularity as a whale watching port. One of the truly great things about whale watching from Gloucester is that the city's location on the southern end of Cape Ann is situated directly between both of these popular whale feeding areas. Whale watching tours are also available from other ports, including Provincetown, Newburyport, Boston, and Plymouth.
Mass Wildlife maintains an excellent site (http://www.mass.gov/dfwel...) showing access points and maps of wildlife areas as well as regulations, permits and fees. Saltwater fishing does not require a license shellfishing usually does, but there are regulations under the authority of the State Division of Marine Fisheries (http://www.mass.gov/dfwel...). Local regulations may also apply in regards to shellfishing or taking of herring.
Bicycling
(http://www.massbike.org/). there are many routes and bikepaths throughout massachusetts. the claire saltonstall bikeway traverses a marked route from boston to cape cod on some less-travelled roads. minuteman bikeway (http://www.minutemanbikew...) from cambridge to bedford is one of the more outstanding bike paths.
Skiing
Nashoba Valley
Westford
Ski Ward
Shrewsbury
Bousquet
Pittsfield
Bradford
Haverhill
Jiminy Peak
Hancock
Wachusett Mountain
Princeton
Blue Hills
Canton
Blandford
Blandford