Met some real-life treasure hunters working for Mel Fisher

These guys have a contract with Mel Fisher (famous treasure hunter) to look for a 1698 Spanish galleon off the coast of Sebastian Inlet in central Florida. Apparently those big tubes swing down and wrap around the propellers, forcing the prop wash in a downwards direction, uncovering stuff.

They get to keep 30% of what they find.  They uncovered some gold bars recently.

Interesting.