Castle Stalker is a four-story tower house or keep picturesquely set on a tidal islet on Loch Laich, an inlet off Loch Linnhe. The islet is accessible (with difficulty) from the shore at low tide. The name 'Stalker' comes from the Gaelic Stalcaire, meaning 'hunter' or 'falconer'.The island castle's picturesque appearance, with its bewitching island setting against a dramatic backdrop of mountains, has made it a favourite subject for postcards and calendars, and something of a cliche image of Scottish Highland scenery. Castle Stalker is entirely authentic; it is one of the best-preserved medieval tower-houses surviving in western Scotland.In recent times, the castle was brought to fame by the Monty Python team, appearing in their film Monty Python and the Holy Grail.