TIDAL STREAMS - CANNA

The tidal streams run strongly W and SW of Canna (5704N 632W).
There are heavy overfalls over all the rocks and around Oigh Sgeir
(5658N 641W) in bad weather with the wind against the tide,
the sea breaks heavily up to 15 miles SW of Canna. For further details
see Admiralty Sailing Directions.