Zip in the Sky The tour starts with a tour in the Sky Tram to reach the top of the Arenal reserve, then begins a tour of adventure full of adrenaline above the treetops, which consists on a system of zip lines, that allows you to observe the rainforest and its landscape from a different perspective, safely in an innovative and different system. Then, you enjoy The tour Sky Trek, this activity includes 7 cross-sectional cables that together have a total length of 1.7 miles with distances from 100 to 2460 feet, and with a maximum height of 660 feet, which exceed the treetops providing a panoramic view of the Arenal volcano and lake.