Community members of all ages are invited to watch and learn as sap from local sugar maple trees is boiled down into pure maple syrup over a warm fire. Attendees can expect to enjoy syrup-tasting, music, activities, and more! Waffles, syrup and T-shirts will be on sale. Join Groundwork Somerville  on March 8 from 10 a.m. to 2 p.m.  at  The Growing Center, 22 Vinal Ave, Somerville.