Up to date, there are 5 discs of mine in a pond by my house, all but one went in no more than 3 feet from the edge but because of the murkyness of the water, anything below 4 inches is invisible. I'm almost positive I'm the only one who has discs in there, and the bottom is a slippery mud/clay. Does anyone have any advice for fishing these discs out of the pond? I've tried rakes from the edge, but the discs I guess floated away out of reach. Is my only option for retreiving these discs diving in? (I'd rather not, gunky from ducks and koi bigger than my cat)