We set off across its entrance for the south shore while my brother in his little RIB "The Guppy" motored slowly up the north shore so as not to disturb us.
The NE wind dropped in the lee of Beinn Sgritheall, 974m, as we passed the halfway point at a shallow reef marked by a pole; Sgeir Ulibhe or Wolf Rock. Don't be fooled by the apparent shallow water, just to the south of the rock, the glacial trench that forms Loch Hourn is 189m deep. That is deeper than the Atlantic Ocean until about 100km west of the Outer Hebrides!