Forty miles west of Sarasota, the Gulf of Mexico hides underwater mysteries. One to two hundred feet below the surface are openings to places no one had ever been…. Until a group of divers, calling themselves “Explorers Under the Gulf,” made some awesome discoveries. Here’s a preview of this month’s In Focus on the Environment - Blue Holes in the Gulf. Dive into the Blue Holes and Caves in the Gulf of Mexico – tonight at 8:30 on WGCU-TV. (AUDIO)