Son Doong cave(Vietnamese: Hang Son Doong) is worlds largest cave, located in Quang Binh province, Vietnam. It is found by a local man named Ho Khanh in .

Son Doong Discovery (vietsub)- Thám hiểm hang động lớn nhất thế giới tại Việt Nam- P2 Truth About Werewolf and Vampires Existing – Discovery History .

Nguồn: https://jablonec-krkonose.com/

Xem thêm bài viết: https://jablonec-krkonose.com/category/giai-tri