LIVE OAK, Fla. (AP) _ The bodies of two scuba divers were found more than 500 feet inside a maze-like, water-filled cave where they had become separated from their instructor.

Mark Anthony Granger, 19, and William Anthony Ridenour, 34, both of Kingsland, Ga., had just received their diving certifications, authorities said.

The men were reported missing Sunday in Royal Springs cave after they became separated from their instructor, Christopher Whitlock, and his 12-year-old son, police said.

Rescue divers found Granger's body Monday in 40 feet of water inside the cave in north-central Florida, Suwannee County Sheriff's Maj. Les Hall said. Ridenour's body was later found about 50 feet away.

Investigators said the cavern, one of many in the area about 45 miles northeast of Gainesville, has twisting passageways so narrow that a diver would have to remove his tanks to get through some of them. Silt in the water made the recovery work difficult.