1. Rock Climbing
Wind-swept, snow-capped cliffs — that's great for a postcard, but not so much when you want to go for a quick afterwork climb.
Don't head for the hills; head to Brooklyn Boulders in Somerville, a 40,000 square-foot climbing and fitness center featuring a 22 foot-high bouldering wall, a range of classes, and a comfy lounge waiting for you after the climb down.
12A Tyler St., Somerville (617-623-6700).