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Yes exactly. I'll add that most shipwreck discoveries haven't actually been discovered by archeologists, they've been discovered either by amateur divers by accident, or by treasure hunters, who by default only seek after specific ships with known cargo. It's just too expensive for academic archeology organizations to pursue. Take away the quest for profit, and almost nothing gets discovered, no matter how historically significant.
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I suppose this is an area where amateurs can help out. I live near the Great Lakes. Once in the while, amateur divers will discover a new shipwreck. It's like the way that amateur astronomers used to look for comets with the hope of being the first to report one.
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Divers almost never just randomly find a shipwreck underwater. Usually they'll spot some kind of object on sonar first, then dive to check it out.
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in Italy there are "archeological groups"[0] which are amateurs that mostly help with maintaining and popularizing archeological findings.

I think actually excavating stuff is beyond their purvue tho.

[0] https://gruppiarcheologici.org/

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Are the location names and country a secret you are trying to keep?
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