Running for almost 450km and to a depth of 1,800m, it is simply too vast for the five million tourists who visit the National Park each year to take it in. Many try their best by taking a plane or helicopter ride through the deep incision, which records nearly two billion years of Earth history.
ncG1vNJzZmivp6x7o67CZ5qopV%2Bjsri%2Fjqyaop2emLJusc2voKunnqKyr8CMa2xxcGFugnQ%3D