Media Forest is a large media space where music and media exist together. Park mode and Party mode create a big spatial change. Generally, the park creates a static park atmosphere, and the entire space becomes a media space in the Party mode. Media forest is an exciting project to experience music in a body. It is a media space that responds to music centered on the mobile stage in the park, and it is a device that transforms the whole into a visual experience and an audiovisual and holistic experience that transcends listening to music. In designing a multipurpose outdoor space, the purpose of the external space is to create a flexible and adaptable outdoor space that is easily adaptable for each purpose. To do this, the mobile kiosk and mobile stage move in parks, setting park mode and party mode.