East of Shetlands and Fair Isle between lines drawn due south-east from Sumbrugh Head lighthouse due north-east from Skroo lighthouse and due south-west from Skadan lighthouse
Soir ó Inse Shealtainn agus Eilean nan Caorach idir línte arna dtarraingt díreach soir ó dheas ó theach solais Cheann Shumbroig díreach soir ó thuaidh ó theach solais Skroo agus díreach siar ó dheas ó theach solais Skadan