Given Boulder John's comment, with which I totally agree, I feel the need to present our local "mudhole," Aurora Reservoir. Before June 20 and after September 10, the viz can be as good as 20 feet or more, but in summer 6 feet is more common. We have a Cessna 310 sunk at 30 feet, and lots of crawdad's, which get up to 8 inches long. If one is patient, one can see striped bass, an occasional walleye, sometimes a few small trout, and, my luckiest sighting of all, a 30 pound catfish. (The state record blue catfish and channel catfish were both caught in this lake.) Although there are no starfish, we are blessed to have this site with a designated scuba area where no boats or fishermen may intrude. However, I would trade it for TSandM's mudhole in a minute. On the other hand, I will dive Aurora res. when ever I can, because it is what is here, and keeps us going between trips to where you fortunate ocean side dwellers get to live.
DivemasterDennis