Mark
Ray is dead on about waterfront properties. My wife and I have been looking at rural properties in Austin TX area. When we checked the floodplane maps kept by the local municipal office, we found out that many of the waterfront properties would end up totally submerged during floods. We also found out that the power utility would not provide a connection unless the power pole on your property is at a point above the flood line. It would be best to check it out thoroughly first. We saw some beautiful properties that one could probably never build on because of these issues. It would also be good to speak to some of the neighbors. We found out that one property was completely covered by water 12 feet (!) deep when the floodgates on the dam upstream were opened after a long period of heavy rainfall. If you walk the property, you may find evidence of past flooding, like long grass that is all laying down in the same direction.
Hope you find your piece of heaven.
Phil