Orkney travel guide. Holiday tips and expert advice for the Mainland, Hoy, Graemsay, Flotta, Burray, South Ronaldsay, Rousay, Egilsay, Wyre, Shapinsay, Sanday, Stronsay, Eday, Westray, Papa Westray and North Ronaldsay. Plus Skara Brae, Old Man of Hoy, Ring of Brodgar, Maeshowe, Scapa Flow, Marwick Head, wildlife, beaches, walking and archaeology.