My last trip to Grand Canyon National Park was West Rim. This morning I was at higher elevation (8,000+ feet above sea level) at North Rim.
West Rim is not part of the Grand Canyon National Park. This area belongs to the Hualapai Tribe, thus public vehicles are not allowed to enter. Tourist can used the coaches managed by the tribe to reach West Rim.
Since 2007, a new man-made structure had been added to the canyon: Skywalk, a transparent pathway hanging 4,000 feets above the canyon.