Discover the Sippo Valley Trail on a bicycle! Take a 23-mile ride beginning at the Lake Avenue Trailhead, riding to Dalton and back. This is a group ride for more advanced riders, with a faster pace and inclines. The average speed will be 9 mph or above. Bicycling at least 30 total miles a week (including this ride) recommended. Be prepared by dressing for the weather, bringing plenty of water, and wearing a helmet. Please register online. Anyone 14- to 17-years-old must be accompanied by a guardian.