Lynn Woods Reservation is one of eastern Massachusetts' best kept secrets. At 2200 acres, it is the second largest municipally-owned park in the entire United States. Located just 10 miles north of Downtown Boston, Lynn Woods is a recreational paradise, home to roughly 40 miles of trails, flourishing wildlife, historical structures, pristine reservoirs, and a unique and rugged landscape that is littered with hundreds of amazing granite boulders! The first map of these boulders was published online in February 2007. Since then, the park has justifiably become one of the most popular bouldering destinations in Massachusetts.