Up in the Arctic Circle is the Maelstrom of Saltstraumen. Here (every six hours) you can see the effects of the World's strongest tidal current as 400 million cu.metres of salt water are forced through a 150metre wide channel. Whirlpools up to 10m diam and up to 5m in depth form for about 20mins as the tide flows both in and out of the strait. Large quantities of plankton are brought in followed by fish and attracted by the event are seagulls,fishermen,and tourists. I belong in the last category.
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