This Canyon is worth visiting. It's hot outside in summer. It's still cold to wear thin sleeves when you go in. If you go in and play, you must remember to take your coat. There is drifting inside, we did not sit, because in order to enjoy the scenery in the canyon, drifting will soon be the exit, and drifting is exciting in the underground river drifting, but can not appreciate the scenery in the canyon that is equivalent to a white entry, the various forms of stalactites are very beautiful.