This is one of the more popular and well known caves in the state. Hydrodynamically formed by annual floods created by snow-melts (see last photos) it's one of the largest/longest caves in the state. The safest time to enter the cave is during late summer through late winter. Late winter is a more popular time to enter the cave as most of the waters inside have drained to the unknown lower levels. The cave is technically challenging with bridging and long crawls over cobblestones leading to large rooms and canyon passages. This cave is unique also in the fact that it changes each year making surveying a challenge. Passages that were walking are now crawling and vice-versa. Sometimes they totally disappear altogether until the next year's flood. Most of the photographs were taken by Yifan Shi from mainland China, the first few photos were of my first trips to the cave.