Corryvreckan whirlpool: Scotland's 'raging cauldron' that is named after a Norse king and said to house a witch
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Corryvreckan whirlpool: Scotland's 'raging cauldron' that is named after a Norse king and said to house a witch

The Corryvreckan whirlpool is one of the largest whirlpools in the world, reaching speeds of 8.5 knots and producing a roaring sound that can be heard 10 miles away.