Worlds largest cave with own ecosystem where humanity has rarely ventured
A cave so enormous it has its own beach, river and jungle, was only ventured into for the first time 14 years ago and holds secrets of time. Intrepid travellers must negotiate two miles of passages to reach Hang Son Doong in Vietnam. It’s 660ft high, 500ft wide and three miles long. Daylight pours in through two giant fissures. It […]
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