Also on these boards
Conquering an Infinite Cave - Vietnam's Hang Son Doong Cave 16 - "It sounded like a roaring train," said "Sweeny" Sewell, describing the noise a second before a waterfall exploded into Hang Son Doong through the Watch Out for Dinosaurs doline, or sinkhole opening. A rare dry-season downpour produced the thundering runoff. Were the cavers scared of drowning? "Maybe if it were a smaller cave," said expedition leader Howard Limbert, "but not here."
Slovenian Caves - the Grand Canyon of the underground. (Slovenia is a country of caves, with some 8,500 being registered. On average, 100 new caves are discovered each year. Some of the more famous ones are: Križna Cave, Planina Cave, Postojna Cave, Škocjan Caves.)