Tidal race

Source: Wikipedia, the free encyclopedia.
View to Lunga from Scarba, across Scotland's "Grey Dog" tidal race

Tidal race or tidal rapid is a natural occurrence whereby a fast-moving

maelstrom, or an underwater obstruction (a reef or rising seabed), such as is found at the Portland Race in the United Kingdom
.

In extreme cases, such as Skookumchuck Narrows in British Columbia, through which tides can travel at more than 17 knots, very large whirlpools develop, which can be extremely hazardous to navigation.

Notable tidal races

See also

Sources