They sail straight across one of the world’s most dangerous ocean whirlpools—but the sea is so calm that she naps through the entire thing. A rare look at the Moskenesstraumen when it’s quiet enough ...

Whirlpools are formed by the combination of strong currents, narrow channels, and rapidly changing underwater topography. Dangerous whirlpools are rare and require currents of 10 knots or more. Small, ...

Arkansas wildlife officials are urging boaters to avoid a section of a river in the northern part of the state after a sinkhole opened up and created a dangerous whirlpool that led to a man’s death.