There was a surfing competition that just finished here yesterday. Morocco won first prize. [There was four in all. two for men and two for women.] [The winners I think were also from France, Germany and Portugal.] The water here is crystal clear. But on occasion with stormy weather or rain the overflow in the sea makes the sea muddy. I thought about this problem and thought to myself I have never heard of such a problem in the USA. So there must be some solution. Then it occurred to me the the runoff water from the city should be directed into a large pipe that would be laid out for about a half a kilometer into the depths of the sea.  I mean to say that I think this would solve other problems also. It is not just the mud in the water but sometimes other kinds of parasites can get too close to the shore--being attracted by the run off. \

Why you ask do I put this on my blog. ונשמרתם מאוד לנפשותיכם The Gemara brings this verse to show that one is required to take care of his physical health.