The Rim Trail may the most famous hike in the Grand Canyon National Park but Mooney Falls should be right up there. You will be descending through caves, down ladders and rocks until you get to the shoulder of a cliff looking at the almighty 200-foot waterfall. Continue going down to see deep pools, creeks, and green grape vines. Other awesome places to hike in the Grand Canyon are the Bright Angel Trail, which is quite dangerous, the Hermit Trail and the Grandview Trail, which is very, very steep.