Nature Park is a holosseum stage in Custom Robo (GameCube) and Custom Robo Arena. It provides a calm, natural setting for intense battles. This stage features tree stumps and fences as obstacles, as well as a large bridge in the center which moves up and down. Nature Park is often favored by long-range specialists.
In Custom Robo Battle Revolution, Nature Park is Rahu's initial holosseum. After fighting the enigmatic entity for the first time, Hero notes that the vegetation in the holosseum seemed more "natural" and "real" than the plants in the Dome City, providing an early hint to the existence of the outside world and Rahu's true nature.