The funny thing is that's the correct orientation and general outline of Drumnadhochit bay and Drumnadrochit castle. And the Loch Ness Monster Exhibit and Museum would be about where Homer and Burns are standing.
Matt Groening sometimes does crazy accurate stuff like that. Like there was an Itchy and Scratchy episode where one loaded the other into a small single-engine airplane, which proceeded to crash.
The small single was an "anatomically correct" Beech 35 Bonanza, AKA "the forked-tail doctor killer." And the name painted on the fuselage was "American Pie," same as the V-35 that Buddy Holly & the Big Bopper died in, inspiring the eponymous Don McClean song.