The Roost is whipped up when the outgoing ebb tide meets the Atlantic swell over a sudden rise in the seabed. It doesn't always have to be windy for it to make life dangerous for peedie boats. You can hear the roar from Aikerness beach.
Uploaded to Geograph by ian fraser on 15 February 2010
Photo © ian fraser, 15 February 2010. Licensed for reuse under this Creative Commons licence