"A Rotten Log Is Never Board"

In this video clip, Lauren Hefferon, who heads up the Arlington Outings Club and the Arlington-based European bike touring company Ciclismo Classico, explains a bit of nature at Great Brook Farm State Park. Hiking, biking and cross-country skiing are fabulous on the well-maintained trails, where we found, it's even fun getting lost. And the ice cream shop is awesome, with inside seating and a viewing window into the milking barn. Call ahead to book a farm tour. 984 Lowell Street, Carlisle, MA 01476; 978 369-6312.