Definition of "Hiking"

According to the dusty, crumbling dictionary on my bookshelf, the definition of hiking is, "To go on an extended walk, especially for pleasure." That sounds about right to me. Put on a pair of comfortable shoes, go outside, and connect with the environment; listening to the world around me, aware of the sights and smells, and letting my mind wander and unwind. There are no rules, no special equipment needed, just get outside and go!