Rockall is an uninhabited islet in the North Atlantic, north west of Donegal in Ireland. This ostensibly insignificant piece of stone is around 80ft by 100ft and approximately 70ft in height. Nevertheless, its ownership is hotly disputed by Ireland, Iceland, the Faroe Islands and the United Kingdom.

Recently, a new claim has been made in connection with Rockall, namely, that it is remnant of the Atlantis highlands, with the plain so vividly described by Plato, now situated under the sea to the south west of the rock. An extensively illustrated French website (a) expounds this theory. However, it somewhat less than convincing.

(a) http://rockallatlantis.com/francais/cerclespiraleos.html