Cave so large it swallows clouds now open to tourists

BY News Desk  September 9, 2013 at 4:24 PM EDT

Photo courtesy of Oxalis

Vietnam’s Son Doong cave was only recently explored and now a tour operator is accepting reservations. Tours start at $3,000 per person and only 220 permits are allocated per year. But, for that price, visitors can see giant cave pearls, flying foxes and new plant species.

H/T Vanessa Dennis