Nature. It is the essence of the world. It belongs to the wind and water. It belongs to the trees and insects; and to the birds, reptiles and mammals. And it belongs to us. We have a duty to protect and respect the natural wonder of the outdoors, whether it’s 80 feet below the ocean or 14,000 feet on top of a mountain. Leave No Trace is a set of seven principles created over 40 years ago to help us remember what to do and how to prepare for a safe, rewarding, and environmentally friendly experience.