She did a lot of that time walking. That's an average speed of 3.2 mph, which is just a hair faster than a brisk walk. Not to say that she didn't do something

She did a lot of that time walking. That's an average speed of 3.2 mph, which is just a hair faster than a brisk walk. Not to say that she didn't do something way beyond what most people have ever done. I once hiked 55 miles over five days in the mountains and that was enough.