#1. Guangxi
Guangxi is an autonomous region in southern China, bordering Vietnam. The area is known for its rivers, caves and towering karst formations. Boat cruises on the Li River connect Guilin and Yangshuo, cities punctuated by toothlike karst peaks. Guilin is the site of Ludi Yan (Reed Flute Cave), a limestone cavern noted for its stalactites and stalagmites.
North of Guilin, Longji’s rice terraces date back roughly 800 years to the Yuan dynasty. Hiking trails and aerial cable cars offer views of the steeply sloped fields. Yangshuo's West Street is home to quaint shops and restaurants.
Nearby caves include Yin Zi Yan (Silver Cave), named for the color of its stalactites. Yueliang Shan (Moon Hill) is a popular climbing destination, with about 800 steps leading to its signature moon-shaped natural archway. To the southwest is the multilayered Detian Falls of the Guichun River, which forms a natural border with Vietnam.