Arrive inside Grand Canyon National Park and step up to the canyon's most celebrated first look. A short, easy walk along the paved rim path brings you to Mather Point, where the canyon opens up in a sweeping panorama of layered red, gold, and violet rock stretching to the horizon, with views plunging a mile down toward the Colorado River. This is the postcard view, and the moment most travelers describe as the one that stopped them in their tracks.