Ah yes Edmund! I learned that from Herb Jager whilst on a water voyage with the San Francisco Folk Music Club back in '75.We "floated" down the Sacramento River in three (I think) large rafts and the order of the day was to play ONLY songs which had some relation to H2O. It was a fine time. We got sun bruned, stopped at riverfront parks in various towns along the way and gave impromptu "concerts", ate like kings and in general blissed out by the time we reached Sacramento.

I got pictures of that voyage. If I could ever figure this out I'll scan them and post them some how. If anyone is interested, that is.