My son received his October issue of "Boys' Life" and announced "Dad, they have cave diving in this issue." "Now that's a different merit badge", I thought. Anyway, it was about a group of scouts camping in Craighead Caverns (commercial cave) in Tennessee. the cave features a large underground lake dubbed "The Lost Sea". The story told of exploration of the lake by Jim Wyatt and other cave divers who surveyed the lake in the mid 70's. The story said they surveyed about 1,500 feet of passage until huge rocks started falling from the ceiling. Jim, is this accurate? Was the exploration published anywhere?

