Zip lines are a popular activity for visitors in Costa Rica. Every zip line place I have visited uses a double cable system, with one cable suspended from a pulley and a second cable attached to the cable that is suspended between platforms.
It is a thrill to zip between the platforms. It is not really an activity intended to view the forest canopy, as you are going too fast to focus much on the trees.
Once you start most zip line activities, there is no way down except to complete the series of platforms by zip lining the rest of the way. Most platforms do not have stairs or ladders to climb up or down. The only way down is to continue zip lining to the end.
This week we are showing photos of the temples of Siem Reap, Cambodia, on our Viva la Voyage travel photo site.