So my cousin and her friends are avid hikers and like to do backwoods hikes. They are planning to hike the rim of the Grand Canyon this fall and I am planning to go along. They are beyond me in ability and I know she will help me out this summer when I am home. One of the guys going has already emailed me a general guide on how to get my body prepped for it. I'm just worried because I have grad school classes and I live alone...I'm not too fond of going out on a 5-10 mile hike solo when I'm not back home with them. Any advice on training or gear? Thanks!