The skywalk the grand canyon in the united states was created by the river colorado. people visit the grand canyon park to go walking and running but ( to look at the view. it is a wonderful view made (2) by the skywalk. the distance ( skywalk to the bottom of the grand canyon is 1219 metres. it is a platform (4) and floor are built of glass ( that you can see the beautiful rocks of the canyon. up to 120 people are allowed to stand on it at the same (6) it opened in 2007 and since ( thousands of people have used it. you have to ( special covers over your shoes to ( scratching the glass beneath your feet. walking onto the skywalk makes you (10) like a bird floating high up in the air.