Just as I said few days ago, I rent bike from Outdoor Activity Program to try mountain bike this weekend.
I tried this afternoon, it is very fun. It also gave me another experience. I used to cycling serval days, which stressed on persistence. But trying the mountain bike on the trails, it is the control ability that domain the experience. You need to slow down when go down, and need to speed up when go up. All of these, a strong attention is needed. Otherwise, it is very easy to get hurt.
Enjoy it. It is the summer that shall go outside.