Underground and Underwater: A River Runs Through It
Caves around the world hold untold secrets, and there is much we still do not know. However, intrepid spelunkers, divers and scientists are making great strides in exploring these dark depths, yielding fascinating results. Underwater and underground rivers have been found in caves and beneath the deep, and more information is being found every day. In 2007, British diver Stephen Bogaerts and German [...]