The scenic spots in Yishui include: underground grand canyon, Tianwangcheng scenic spot, ancient natural underground corridor and firefly water cave. 1. Shandong Underground Grand Canyon Scenic Area is located 9 kilometers southwest of Yishui County. It is a rare karst landform cave in the north, with a total length of 6 kilometers. It is the first long cave in Jiangbei. The two walls of the canyon in the cave are cut, and groups of stalactites are hung upside down on the top, which is very spectacular. 2. Tianchang Wangcheng Scenic Area is located in the central part of Shandong Province, in the northwest mountainous area of Yishui County. This is a scenic spot featuring the landform and scenery of Yimeng Mountain. When you come here, you can climb the broad peaks along the mountain road and overlook the scenery of the mountains. On the top of the mountain, you can walk in stone courtyards and houses with ancient city walls, or watch a grand circus performance in ancient costumes, visit the ruins of the Spring and Autumn Tomb or go to the underground ice palace to see ice sculptures. 3. Gutian Natural Underground Gallery is a national 4A-level tourist area, and is praised as the first cave in Jiangbei by many domestic geological experts. It is located in Liuhuyu, Yuandongtou Township, Yishui County, the first ecological township in Yimeng, and the "hometown of red sister-in-law". Scenic spots include the "Natural Underground Gallery" which has been painted for millions of years, the "Yiranju" which is a resort planned and built according to the star standard, and the "Yimeng First Ecological Valley" with a thousand acres of chestnut garden as the main body. It is a leisure and entertainment center integrating underground wonders, leisure and entertainment, residence, catering, conference, business, popular science and fitness. 4. Yishui underground fluorescent lake tourist area is a large underground dark lake cave, which is located at the foot of Shimi Mountain, one kilometer south of Yishui County 19. It is a famous underground firefly water cave mysterious world. The cave was formed about 65 million to 230 million years ago, with a total length of1.200m.. Fluorescent Lake covers an area of 25,000 square meters and has a volume of 240,000 cubic meters. The cave has a large scale and diverse karst landscapes. The underground water in the cave is rich, with long flowing water, clear and sweet, and unpredictable. There are not only a lot of strange landscapes such as stalactites and strange stones in the cave, but also a kind of firefly, which lives only in wet caves and is full of twinkling stars in the clear night sky, forming a wonderful landscape.