Omey is a half-tide island off the coast of Galway. It is chiefly a Porphyritic Granite rock, on the north-west portion of which are wind-blown sands that are for ever changing their positions, the houses of the inhabitants being covered to such an extent by them, that, in order to reach the interior, they are compelled to descend through holes, like large rabbit-burrows. The oldest record we have in connection with the island is, that St. Fechin built an Abbey there previous to A.D. 664. This abbey is said to be buried in the sands, but its exact site cannot be pointed out; however, there is a supposed fifteenth-century church, that is now sunk 12 feet deep in the sand.