Biking is a great way to explore the park. You can bike from the visitor's center along a nice windy path through trees, then all along the rim on the shuttle-only road. There's a short section near Hermits Rest where the walking path is accessible to bikes and puts you right on the rim. It's a great way to avoid crowded shuttle buses, get some exercise (it's hilly), and put things in perspective. #grandcanyonnationalpark #biking