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RE: Finally made it out to do some treasure hunting!
Makes me wonder how hard it would be to create an automated metal detecting drone.
The principle would be to have it zoom over the beach near the sand, then stop and send you a signal / ping you when it detected something of interest.
You could just set it, and then take a small walk / read a book till it found something...
Probably a bit hard to make, but who knows XD
I'm quite sure it's possible, I'm sure with the help of a computer too it could probably discriminate much better too.