They resumed the search for 13-year-old Griffin Prince after daybreak on Tuesday.
Hall County sheriff's Sgt. Stephen Wilbanks tells The Times of Gainesville that the search area has been expanded some, and previous areas are also being rechecked.
The Gwinnett Daily Post reports that authorities believe Griffin's body is in the realm of 110 feet deep, in a submerged forest where divers have less than three feet of visibility with a search light. Authorities say cadaver dogs are riding on the bows of boats.
Prince's brother, 9-year-old Jake Prince, was killed in the June 18 crash.