The Race to find the World’s Biggest Underwater Caves 15 April 2008

In the April 2008 issue of Discover magazine, I wrote a story about two explorers, one British and one German, who are among the world’s leading cave divers, and of how they found the connection between Sac Actun and Nohoch Nah Chich, in the Yucatan peninsula, finding what was at the time the world’s biggest underwater cave.