The state Department of Energy and Environmental Protection's annual “Sky’s the Limit” hiking challenge is back for another year.  The program began in 2015 to promote hiking in Connecticut’s state parks and forests.  14 locations are highlighted each year, with three in the Greater Danbury area this year.  They include Paugussett State Forest in Newtown, Seth Low Pierrepont State Park Reserve in Ridgefield and Housatonic Meadows State Park in Sharon.  Participants can receive a medallion or pin, along with a certificate, for hiking to 10 designated locations. For hiking all 14 parks, 50 people will receive a hand-carved hiking staff.