They say not to hike the South Kaibab Trail rim to river to rim in a day. And having done it, I’d say they’re wise to advise against it. But since some of us are in excellent physical condition, very…

They say not to hike the South Kaibab Trail rim to river to rim in a day. And having done it, I’d say they’re wise to advise against it. But since some of us are in excellent physical condition, very…