The series revolves around Spongebob and his aquatic friends. SpongeBob SquarePants is an energetic and optimistic yellow sea sponge who lives in a submerged pineapple. SpongeBob has a childlike enthusiasm for life, which carries over to his job as a fry cook at a fast food restaurant called the Krusty Krab. One of his life's greatest goals is to obtain a boat-driving license from Mrs. Puff's Boating School, but he never succeeds. His favorite pastimes include "jellyfishing", which involves catching jellyfish with a net in a manner similar to butterfly catching, and blowing soap bubbles into elaborate shapes. He has a pet sea snail with a pink shell and a blue body named Gary, who meows like a cat.
Sandy is a close friend of SpongeBob SquarePants. She is a proud Texan and speaks in a stereotypical Southern drawl. In order to live underwater, Sandy resides in a bubble-like dome and wears an atmospheric diving suit when outside her house. Inside the treedome, her normal attire consists of a green and purple bikini.other characters must wear "water helmets" with opposite functionality when visiting her house.