Researchers explore Shuanghe Cave in Zunyi City in southwest China's Guizhou Province, March 17, 2018. The Shuanghe Cave has been named the longest cave in Asia, and the sixth-longest in the world, cave researchers announced at a press conference on Saturday.
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
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(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)
(Photo: China News Service/Zhao Jieyu)