I am looking at going to the Grand Canyon in mid-August (yes, I know it's hot and crowded, but it's the only time that I can go), but I am not sure whether to go to the South Rim or North Rim. Can anybody give me some tips as to what are the benefits of each? I somewhat know that the North Rim is more secluded (but not to what degree), and easier to get mule rides, etc. Let me know if you have any advice. Thanks!