Welcome to Greenland House of Castletown Greenland House is an elegant and beautiful house with a Grand Staircase and was originally the Bank House which is situated on the main A836 highland coastal route. We are just a few hundred yards from Dunnet Bay with sands stretching for miles towards Dunnet Head - which is the most northerly point of the UK mainland.Planning to go to Orkney then why not stay with us we are close to the ferries at Scrabster and Gills Bay, you can travel as a foot ... More