Arrochar occupies a dramatic situation near the head of
Loch Long. The
Arrochar Alps, which are a popular destination for climbers and hillwalkers alike, tower above the village to the northwest. The Argyll National Forest Park lies to the southwest.
In 1263, King Haakon of Norway launched his Armada against Scotland, which ultimately led to his defeat at the Battle of Largs. Many of his Viking Longships sailed up
Loch Long where they were dragged across the isthmus between Arrochar and
Tarbet on
Loch Lomond, thereby allowing them further penetration into mainland Scotland.