For me, rock climbing is very exciting, because I've done a few times. At first, I was afraid when asked to try, but after one try I can feel the fun of rock climbing. Besides to exercise my courage, rock climbing also exercises my concentration and my body balance
Exercise my concentration, because I should be able to think quickly to decide which way I will climb to progress to the top without difficulty.
Exercise my body balance, because my body position when climbing should match with the contour of the rock that I went through.