Day2: Zhangjiajie Grand Canyon Group. I like the wet air of the southern rain. When I take a breath, I feel my lungs are cleaned up. The exhaust gas in the city is replaced by the purest oxygen in nature. I just want to take a deep breath and breathe again. The Grand Canyon is very worthwhile to play. It is full of green, vapor, waterfalls, pools and streams of all sizes, beautiful butterflies and fluorescent green and blue dragonflies we have never seen before. We can't bear to leave until it's too late to leave by boat.