Hang Háng La in Nậm Khắt commune (Yên Bái) is filled with beautiful, spacious, and very deep stalactite caves, yet to be fully explored.
A kilometer-deep cave in Mù Cang Chải untouched by tourists














According to Việt Hùng/Zing news
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Reference: Travel guide from Mytour
MytourJuly 25, 2017