A startup will use underwater drones to find treasures 33 feet beneath the seabed
Archeologist, Dr. Robert H. Baer, who participated in the underwater drone's testing, said, "Close examination of the silver plates and flintlock pistol strongly indicate that these artifacts may well serve as diagnostic artifacts that may lead to the identification of the Melbourne Beach shipwreck."
https://interestingengineering.com/innovation/underwater-drones-33-feet-beneath-seabed