premise: There was no way some of these people were going to make it out without help ... and oxygen . Here are some pics of the canyon . I must say , that although the Grand Canyon was large , it was my least favorite of the parks . I am also a little desensitized , but all the other parks had a uniqueness to them , where this is just a big hole . What 's a possible reason why there was no way some of the people were going to make it out without help ?
hypothesis: Because the Grand Canyon is large .