Shell City

Shell City, despite the name, is a gift shop called Shell City: Marine Gifts and Sundries. It is located on the surface owned by a Cyclops (in reality, a man in a diving suit), selling dried-out dead sea creatures. The road to Shell City is dangerous and no one has ever returned from there, which makes it the perfect place for Plankton to sell Neptune's crown. It is located on a beach where SpongeBob and Patrick meet David Hasselhoff. In a deleted scene of the movie, (which can only be seen in the SpongeBob SquarePants Movie DVD), Shell City is actually a city and is where Sandy constantly gets pursued all over the place by squirrel exterminators in black suits. She also mentions that there are buses that arrive here going to Bikini Bottom. Although Shell City was filmed in Florida, the location in SpongeBob's world would land Shell City in Australia most likely because a sign in a SpongeBob book based on the movie says that Shell City is 3,000 miles away from the Thug Tug. The Thug Tug is not that far from Bikini Bottom. Bikini Atoll is approx. 5,000 miles from the United States, which couldn't mark Shell City in California.