amazing trail! definitely difficult on the last 3 miles going up to bright angel trail. went in aug 11th, temp was about 105 deg. take at least 4 liters of water per person. I took 2 and still wasn't enough. barely made it to the next water point on the Colorado river. make sure you bring electrolytes in any form. the heat and sweat will drain you! salty snacks are a must and maybe some extra socks if you wanna take a dip in a tiny body of water. will be a while till I do this one again.