 For the outlet, temperatures surpassed 90 degrees Fahrenheit during Sims time in the canyon. Less than two weeks before, a 41-year-old was found dead in the morning hours of July 16th, also on Bright Angel Trail, which, not for nothing, but should have been a sign right off the bat. I don't know how many other trails there are, but Bright Angel Trail kind of tells you. Following the string of deaths, the National Park Service has put out an alert telling hikers to avoid going into the canyon and to limit their outdoor activities between the hours of 10 a.m. and 5 p.m.