Hiking the Bright Angel Trail in the Southern Rim of the Grand Canyon is one of the most challenging and iconic hikes in the US. While over 5 million people visit the Grand Canyon every year, less than 1% step foot on a trail, and a small fraction of those take on this difficult hike. With over 3,100 feet of vertical hiking down, and then back up for a total of 6,200 feet completed in one day, this trek also added the obstacle of temperature change. While it might be a comfortable 75 degrees up top, hikers encountered heat reaching 110 and above in the depths of the canyon.