The world’s largest cave is over five miles long - so big that ... British caver Howard Limbert and his team there in 2009 to map Hang Son Doong for the first time. Adventure tour agency Oxalis ...

Pavlova is a Russian speleologist, or a scientist studying caves, and she was on a mission to map caves in the region. Dimas was enlisted to provide local knowledge and experience. The two joined ...

Pavlova is a Russian speleologist, or a scientist studying caves, and she was on a mission to map caves in the region. But, she needed the help of a local who knew the rocky caverns inside and out.