If it's in the dry sand just send some kids out there with the BH Juniors or something they can swing and have them clean everything up. They would have a field day. Where the zincs would drive the seasoned MD'ers nuts a bunch of 5-10 years olds would be in heaven finding them with every swing. Who knows, may even find something good and have a hobby for life.
If someone I know see's me in the dry sand, they ask me if I'm feeling well. Walking in thick dry sand down here will wear you out. Wetsand is like walking down a sidewalk