The Grand Canyon is really worth a visit. The canyon is particularly cool, and the ghostly work of nature is amazing, especially during the summer water season, various waterfall bridges and flowing water, refreshing! The lighting in the canyon is excellent, the staff service is in place, the firefly hole is not particularly excellent compared to the Grand Canyon, there are more outdoors, there is a section of fireflies that are taking a boat in the hole. Butterfly Valley is relatively small, there are not many types of butterflies, and it is not of great significance.