Took the Cholla trail & it was a decent workout for two athletic 30 year-olds, not as tiring as a competitive soccer game. It was not as challenging as the Echo Valley trail which was closed at the time of our travel. The view of Phoenix & all the surrounding ranges from the top were great. My only complaint is the horrendous parking situation. Our 7 year-old could not have made it to the top but there were a number of older kids that were on the path.