I bought a card ticket with Sony Dream Exploration inside, which can be free of one ticket. I looked for a weekend morning to see. Sony Dream Exploration is in Chaoyang Park. It's not far from the South Gate. It's a world of light, shadow and sound. It's very suitable for children above primary school to play. The staff in it are very enthusiastic. They will come to explain how to play for you at any time. The day we went was a winter weekend. There were few people and there was no need to queue.