Metal Detecting

What's the best way to dig on a stoney beach. I have a trowel and a border spade. I suppose I need a sheet to stop finds falling back into the stones but is there anything else I need?

I made one of these for stream detecting, i think it would work well on a stony beach, it's plastic so scoop up stones and wave over detector.


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thats a great idea. i will give it a go this weekend.