Exercise helps me with stress. It changes your brain chemistry. I turn to Ashtanga yoga when I feel the need to relax. I love it, but it's not right for everybody. It's taught to you a little bit at a time, according to your body type and your strength. That keeps things challenging.
"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.
