Start the spring with a 7.5 mile hike through the Blue Hills. Begin at the Trailside Museum (Milton) and finish at the Shea Rink (Quincy). Spotting cars is necessary. This hike is for all levels, but geared towards beginner/intermediate hikers. Must be in good physical condition. L Stacia Zukroff, CL Andrew Shearer. 45 minutes north of Providence, half an hour south of Boston. It's free, but please register online.