Old Fishing Weights
Every time we go to the beach we find fishing stuff. Here's part of our ever growing collection of weights. We've never seen one like the triangular one at the top.
One time it was low tide, and we wanted to try some wet sand. We got a strong beep, that turned out to be the big weight on the right.
After we pulled it out, there was still a signal in the hole but it was too cold to keep on digging.
(Spectrum XLT/ Relic mode)