Castle Stalker.

Castle Stalker, like many of the castles in Scotland, is inhabited. It is open to the public on certain days of the year, and as you can see from the photo is accessible only by boat when the tide is in. The castle is situated just off the shore of Loch Linnhe at Appin, north of Oban. If you wish to learn more about it , then there is an excellent website http://www.castlestalker.com/main.htm