Introduction to Xiyuan Canyon: Xiyuan and Dongyuan are two large canyons basically shaped like a "V". The canyon is about ten kilometers long and is famous for its peaks, forests and streams. Peaks and mountains poke into the sky, with towering ancient trees all the way, bamboo paths lined with trees, and birds singing and flowers fragrant. The clear stream flows down from Tiantangang for dozens of miles, and is home to many kinds of fish, shrimps, crabs and aquatic plants. It is called the Grand Canyon of Health.