0.5 miles, Half day
This is a very popular rock climbing and bouldering quarry in Quincy, MA just outside of Boston. There a many top rope options and routes of varying difficulty from novices up to 5.14 routes for experts. Please see the links with this guide that go into more specifics about the route options.
From Interstate 93 southbound from boston take exit 8 just south of the city. Take the first right off the exit ramp onto Riciutti Drive. Just ahead on Riciutti drive are the parking lots on the left. I don't believe there are any fees to park here.