Happy gymnastics in Hangzhou Children's Palace is based on happy gymnastics and combined with sports games. Courses include balance beam and trampoline. Gymnastics is the general name of all gymnastics events, including competitive gymnastics, rhythmic gymnastics, trampoline and other Olympic events, as well as non-Olympic events such as competitive aerobics and acrobatics. Competitive gymnastics is a branch of gymnastics, which is a kind of sports that completes complex and coordinated movements on specified instruments and scores according to the score of the movements or the difficulty, arrangement and completion of the movements. Competitive gymnastics is characterized by difficult movements, complex techniques and certain thrills.