For the weekend warrior who just can’t wait for the weekend, the Granite Railway Quarry (Ricciuti Dr., off Willard St., West Quincy, 617/727-4573 or 617/698-1802, website [1]) has some precipices nearly as challenging as those found in the White Mountains [2].
Links:
[1] http://www.mass.gov/dcr/parks/metroboston/quincyquarries.htm
[2] http://www.moon.com/destinations/new-england/new-hampshire/white-mountains