The YMCA of the Rockies at Snow Mountain Ranch has a lot to offer! There are lots of activities for families. Tennis, basketball and many others. They have a very nice library!
Their zipline is a gravity based line that takes you off in the belly of the line after zippingcompletely across and back to the belly. This means no braking. You climb down a ladder after you stop.
YMCA of the Rockies at Snow Mountain Ranch
1101 County Road 53
Granby, CO 80446