Castle Stalker (Scottish Gaelic: Caisteal an Stalcaire) is a four-storey tower house or keep picturesquely set on a tidal islet on Loch Laich, an inlet off Loch Linnhe. It is located about 1.5 miles (2.4 km) north east of Port Appin, Argyll, Scotland, and is visible from the A828 road around mid-way between Oban and Glen Coe. The islet is accessible (with difficulty) from the shore at low tide. In recent times the castle was brought to fame by the Monty Python team, appearing in their film Monty Python and the Holy Grail. It also appeared in the film Highlander: Endgame. The Castle's implausibly 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 cliché image of Scottish Highland scenery. Castle Stalker is entirely authentic; it is one of the best-preserved medieval tower-houses surviving in western Scotland.