Chenzhou Wanhuayan Travel Guide - Outside the Cave5 / 6Chenzhou Wanhuayan Travel Guide - Inside the Cave
Introduction to the underwater calcium film crystal cone: The "underwater calcium film crystal cone" in the cave can only be seen in two places in the world. It only grows one centimeter every hundred years and is called a "national treasure".
Chenzhou Wanhua Rock Tourism Guide - Underwater Calcium Film Crystal Cone
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