Scuba
I have hunted with Joe, he's a true pro, loves detecting, hope to hunt more with him down the beach, as when I hunt it's usually alone, he keeps his honey holes to his self, if i hunt with him, know one will know , were that spot is, as loose lips sink ships, i am one that enjoys hunting , and don't care if i find gold or not, i enjoy someone who loves the hobby as much as I do. He keeps his hunting & spots LOW key, as he should. You have a better chance getting him on a 60 foot dive, than him sharing his secrets,
Bottom line , he's down to earth, a very nice guy, drove up to CT with him, we hunted for a week, we didn't do well, but we respected those CT guy's, as it was some hard hunting ground's , i am surprised that you, being a diver, that you have not found the mother load yourself, best of luck, ps lets see those go pro dives under water detecting, as under water your not giving up locations on honey holes , Earl