. "Shielmartin Hill or Shelmartin (163 metres (535 ft) high) is a peak on Howth Head. From it can be seen Portmarnock, Sutton, Bull Island and the coastal areas behind it, and most of Dublin Bay."@en . . . "OSiDiscovery 50" . "163.0"^^ . . "Shielmartin Hill"@en . "temp"@en . .