Ask any ultra runner about their bucket-list runs, and the Grand Canyon will likely top all of their lists. There’s just something epic about descending into a mile-deep hole in the earth then climbing your way back the other side before turning and doing it again in the opposite direction. What makes this run unique though, is that there’s no official event or day of the year to run it. If you can endure the extreme heat, you could run it during the middle of the summer and if you like the cold, you can run it in the winter. If you have wanted to add this run to your resume, here’s some basics you should know.