Alexis Catsambis (NHHC) and Bob Neyland (NHHC) prepare to investigate anomalies. While the magnetometer records anomalies, it does not provide a clear visual of the object. Divers or snorkelers are deployed to examine the anomaly and determine its archaeological and historical significance. If any artifacts are exposed, possible dating or identification efforts can follow. If the object is buried, probing or excavation may follow.