A short entranceway leads to a large circular projection screen that encloses a shallow pool of water, 7 m in diameter. A wave activator is located in the floor at the entrance. This is connected to a device in the centre of the pool that sets the water in motion. In order to enter the space, visitors must step on the activator, thus disrupting the water. Inside, a spotlight projects a narrow circular beam of light onto the water, which is reflected on the walls. When the water is still, a flat horizontal beam of light is cast; when the water moves, so does the reflected beam of light, projecting a wave pattern onto the walls. The effect is also visible on the exterior of the screen.