Ocean Star is designed for solving parking crowded in CBD. The whole parking process is automated.To decrease petrol consumption and emissions, changing the cubic capacity of ballonet is used instead of mechanical power. Being a unique landscape it can also help to put on a fire nearby by providing store water. Just like bubbles in water , more cars can parked in the cubic capacity than in the traditional one. Volume expansion make the car float on the water and guided to the exit. The unique form parking underwater make it possible to regulate temperature in the car. Parking dont limit by weather any more.