Saturday, February 7 from 12:00 p.m. – 3:00 p.m. Harmony Adventure Park - ‘Olaf’ the lovable snowman from Frozen is coming to Chelmsford from 1:00 p.m. – 2:30 p.m.!! Come and get your picture taken with Olaf the Snowman at the future location of the new, Harmony Adventure Park at 62 Carlisle Street in East Chelmsford. Join us for winter treats by the campfire and fun activities, including snowman bowling! Design your own personalized stepping stone that will become a permanent part of the adventure pathway.