Costa Rica is known for their Canopy Tours where a vacationer can zip through the rainforest. The zip-lines are scattered among several platforms, some as high as 130 feet.
Some smaller, indoor zip lines have also been used in commercial applications for children's recreation centers such as Jungle Quest.
Zip-lines are a common way to return participants to the ground at the end of a ropes adventure course.
In past days in the Australian outback, flying foxes were occasionally used for delivering food, cigarettes or tools to people working on the other side of an obstacle such as a gully or river. Australian troops have used them to deliver food, mail and even ammunition to forward positions in several conflicts.