I saw your post in the "how old are you" thread. I didn't want to hijack it and go off topic.
However I see you go metal detecting. Me too. I have to say I'm probably not that good at it.
But I live near the coast and get down to the beach as often as I can.
The lady in the kiosk down at the beach has my number and phoned if she knows people have lost jewellery.
I've found a couple of rings and a bracelet which have been returned. Usually with a reward, although not always.