Operating two of Ketchikan's ziplines is Alaska Canopy Adventures. The sites are both at Herring Cove, 8 miles south of Ketchikan via the South Tongass Hwy: Bear Creek has seven lines, a skybridge above a waterfall, a 250ft slide and a 4WD vehicle to transport you up the mountain. It is more suitable for beginners and appropriate for kids.
The Rainforest Canopy at Eagle Creek is more advanced and enables you to view wildlife, including salmon runs in Herring Creek and bears that feast on them.
The company maintains a desk in the downtown visitor bureau or you can book online.