I like going swimming and riding bike,but my favourife outdoor activity is climb mountains.I love climbing mountains because of the good air in the moutains.Also I will meet the tall moutains sometimes, but I won't give up,so climbing moutains can strengthen my will. And I usually go climbing with my family on the weekend,we always have a picnic on the mountains,I love picnic and we have a great time.So I love climbing.