Mainland is, unsuprisingly, the main one of the Orkney Islands in Scotland.
Loganair, a subsidiary of British Airways fly to and from Edinburgh, Glasgow, Inverness, Aberdeen and the Shetland Islands from Kirkwall's airport.
Local routes also connect the other Orkney Islands to Kirkwall.
Northlink Ferries travel several times daily between Stromness and Scrabster and several times a week during the night between Kirkwall and Lerwick and Aberdeen.
Pentland Ferries sail between nearby St Margaret's Hope and Gill's Bay (near John O'Groats).
John O' Groats Ferries passenger ferries travel during the summer between nearby Burwick and John O'Groats.