Caiya Gorge Introduction: Caiya Gorge is the starting point for boating. The colorful cliffs are mostly gray-brown in color, with lines of orange, gray, purple, and fruit green, either thick or thin, or Long or short, they are all drawn vertically from the cliff. At first glance, it looks like thousands of rays of sunshine pouring down the cliff, or like thousands of pieces of brocade hanging down from the top of the cliff.