Vietnam already has a worldwide reputation for its food, beaches, ancient history and diverse landscapes. And, over the past decade, it’s also emerged as one of the world’s leading destinations for ...

The registration for tours of Son Doong cave in 2017, one of the world’s largest caves, was opened for booking on August 15 by Oxalis, limited to 500 visitors. The registration for tours of Son Doong ...

Oxalis Adventure Tours has been granted exclusive rights to accompany adventure seekers to Son Doong, the world’s largest cave, located in central Vietnam, for up to 10 years. Oxalis Adventure Tours ...

THE BATS WERE in a frenzy. At first it was just a single creature, flashing past my face as seven of us, wearing life jackets, helmets and headlamps, bobbed in a shadowy river inside a ...

The only thing bigger than this infinite cave is the wait list. Vietnam recently opened its mammoth Hang Son Doong cave to intrepid travelers—and there's already a two-year wait list to visit. Only ...

Howard Limbert, who discovered the world’s largest cave—Son Doong in Vietnam—as part of the British Cave Research Association, tells Kate Springer about this amazing gem. He is also the technical ...