Kirkwall is the largest town in Orkney, an archipelago to the north of mainland Scotland. First mentioned in the Orkneyinga saga, it is toda…Kirkwall is the largest town in Orkney, an archipelago to the north of mainland Scotland. First mentioned in the Orkneyinga saga, it is today the location of the headquarters of the Orkney Islands Council and a transport hub with ferries to many locations. It is the centre of the St Magnus International Festival and is also a popular stopping off point for cruise ships. St Magnus Cathedral stands at the heart of the town.