Tianhetan Lake is located in the southwestern suburbs of Guiyang. Visitors here can see amazing karst caves and calcareous waterfalls. This is exemplary of Guizhou's scenic mountains. There are multiple cascading waterfalls in the area, one of which is 210-meters wide. Among waterfalls in China, it is rare to find one of such width. The caves and tunnels in the area are both dry and wet. Dry tunnels can be explored on foot while wet tunnels require a boat tour. Perched on the bow of a narrow boat as it slowly winds its way among the stalagmites, stalactites and other natural phenomena is an experience unlike any other. If you're looking for something to get your adrenaline pumping, the mountain ziplines are worth a try. It is also recommended to check out the local ethnic villages.