Does anyone know of any good dogparks north of the city?
Right now I go to Sheepfold in the Fellsway. Technically it's supposed to be dog on a leash, but it usually has at least 20 offleash dogs all playing at any given time.
The Middlesex Fells is good for running around in the woods. Also, Lynn Woods Reservation - the 2nd largest municipal park in the country (after Central Park in NYC). How North of the city are you looking for?