gnu, if only you'd swum in L. Erie in 1967, we may have met! But if the water was THAT murky, we'd have passed like ships in the night! (I don't seem to remember the water being dirty, but I do remember my uncle saying it wasn't a good idea at the time!) Swam in every Lake that year, and stayed with lovely lovely Canadian people in various cabins on the shores. I was only young, and everyone was so kind and welcoming. Was tempted to emigrate, as my uncle and aunt had done, but eventually decided to stay in UK.