The sign at the mouth is black and white, its macabre message clear. “STOP. PREVENT YOUR DEATH!” it warns. “THERE’S NOTHING IN THIS CAVE WORTH DYING FOR!” Beside these words looms an image of the grim ...

ST. PETERSBURG, Fla. (AP) — A father and son who went diving on Christmas Day with new equipment the boy got for a present have been found dead in an underwater cave at a north Florida wildlife refuge ...