A large and popular nature reserve situated in a volcanic field, Wu Da Lian Chi lies in a region in western Heilongjiang inhabited by the ancient Daur minority. Its name, meaning “Five Big Connected Lakes,” is derived from the five bodies of water created by a succession of volcanic eruptions, the most recent occurring in the 18th century. The resulting lava, which blocked the Bei River and created the lakes, has turned Wu Da Lian Chi into a volcanic spa, with geothermal springs and sulphurous waters that have a reputation throughout China for their curative powers.

The 14 volcanoes at Wu Da Lian Chi add a measure of drama and character to the region’s flat terrain. To the west of Number 3 Lake are the two principal volcanic vents, Lao Hei Shan (Old Black Hill) and Huoshao Shan (Fire Burn Hill). The sites of the most recent eruptions, which took place between 1719–21, both volcanoes are popular with visitors and can be climbed for panoramic views of the area. Surrounded by fields of lava, Laohei Shan generated most of the magma that spilled out into the surrounding area. However, like all the volcanoes at Wu Da Lian Chi, it is now dormant. Visitors can also bathe in the area’s pungent hot water springs and taste the local mineral water. Apparently bursting with dissolved minerals and curative powers, the waters are sought by a devoted band of the ill and infirm, as well as elderly Chinese, who flock to Wu Da Lian Chi to avail of treatment in the numerous sanatoriums that have opened here. The waters are also the star attraction of the annual Water Drinking Festival of the local Daur people, held every May.

Underground caverns dot the area, including the freezing Crystal Palace and Bai Long Dong (White Dragon Cave), subterranean ice caves decorated with ice sculptures and crowded with visitors in summer. The nearest settlement is the village of Wu Da Lian Chi, which has several hotels. Since the guided tours available often make costly and needless diversions, visitors may find it more efficient to travel independently by regular taxi or motorcycle cab.