BTW, Your upper pond isn't much to work with as far as swimming goes, but it likely serves a great purpose IF the water that flows into the other ponds passes through the smaller upper pond FIRST. If that is the case, then the upper smaller pond would be considered a sediment pond that helps drop out the silt and such before it goes on down to the remaining two pond. If I had a sediment pond that looked as shallow as yours does (see all the floaty slime? That a good indication of a shallow pond), I would have it dug out a bit just to maximize it's "drop out" ability and consider using it for a forage pond. I'm thinking you could stock minnows in it and use that as feed for the other ponds either as the minnows naturally overflow down stream or by netting them and manually putting them in the other ponds. Something to think about.
