Covered with a specialized glass dome that allows spectators to watch without allowing light to enter the arena, contestants will find themselves in a black room, unable to see at all without the aid of techniques or items which provide vision in pitch black. However, the arena contains five torches, one in the center, and four at points 20m away to the left and right of where each contestant enters. These torches provide 10m radius light sources by which shinobi can navigate and detect one another. Curiously, though each of these light sources and all within their radius can be seen from anywhere in the arena, their light does not spill past the zone prescribed to them.