TIDES AROUND L’IROISE

The main expanses of L’iroise have quite weak tides and it’s only in restricted channels that currents are swift. The Chenal du Four has strong spring streams, although fast boats can push them if necessary. The narrow Goulet de Brest gets up to six knots, creating rough conditions with a wind over tide. The Toulinguet Passage west of Camaret has a bit of stream at its north end, but is otherwise docile.