Sand Mountain is a popular underwater ski resort, and is also the winter equivalent of Goo Lagoon. It first appears in the episodes "Prehibernation Week."
It is a large mountain of sand and those who go to Sand Mountain can tongue slide, ski, or snowboard just like any other ski resort.
Role in series
Sandy and SpongeBob slide down the mountain. They pass other guests that are skiing. Two kids are also making a sandman. In this episode, there is also a ramp on Sand Mountain, despite the fact that it does not appear in any other episodes with Sand Mountain.
Patrick, Sandy, and SpongeBob are seen sliding on the mountain. SpongeBob injures himself by breaking his gluteus maximus and becomes paranoid throughout the rest of the episode.
SpongeBob, Patrick, and other fish are hanging out here. The Drastic Radicals are also seen there.
Sand Mountain consists of three slopes, each of which are graded in levels: Guppy Mound, Flounder Hill, and Sand Mountain.