Raz Blanchard (Alderney Race) is a strait that runs between Alderney and Cap de la Hague, a cape at the northwestern tip of the Cotentin peninsula in Normandy. A strong current runs through the race north of the Passage de la Déroute, a treacherous passage separating the Cotentin from the Channel Islands. The current is intermittent, varying with the tide, and can run up to about twelve knots during equinoctial tides. The French call it Raz Blanchard.
Open Water Swimming
It is site of a prison island swim.