http://www.treeclimbingharness.org/ To start climbing, you will need to learn how to use a rope and climbing harness. Compared to a rock-climbing harness, a tree climbing harness gives more support. If you wish to climb a tree higher than 100 feet—such as firs, redwoods, and spruce—you will need a package of different climbing equipment to ensure your safety and to be able to see the amazing view on top of the tree.
via Ping.fm