Largest Zip Line Course In the World! Rated the #1 Tour in U.S., Colorado, and Durango on TripAdvisor.com. 27 zip line spans, ranging between 56-1400 feet long! An all-day zip line adventure for the whole family! Soar over 1.5 miles through old-growth Ponderosa and Aspen forest and criss-cross the Animas River. Sky Rangers make your Soaring day safe and fun for ages 4-94. One of the best things to do in Durango, CO. Located six miles from the nearest road in the San Juan National Forest, our guests travel on the Durango & Silverton Narrow Gauge Railroad to and from Soaring's property. Included in your Colorado zip line adventure is your first class train ticket in Soaring's privately owned train car, as well as an Eco-tour & a four course, gourmet lunch in the trees.