The rainbow waterfall is so abundant that when the sun is shining at noon, the sunlight shines on the water scattered in the air and reflects a full rainbow, hence the name. The trail to the Rainbow Waterfall is well planned with steps. Although the trail is constantly uphill, there are plum, cherry, peach and plum trees planted all along the trail, so it is a relief to enjoy the flowers. The observation deck at the end of the trail offers a breathtaking view of the waterfall at close range.