Sand Mountain is a popular underwater ski resort, and is also the winter equivalent of Goo Lagoon. It first appears in the episode "Prehibernation Week."
It is a large mountain of sand. 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 Sand Mountain. They pass other guests who are skiing, burning a camper through Sandy's extreme skiing skills. Two kids are also making a sandman, which SpongeBob crashes into. In this episode, there is also a ramp on the 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.