It seems that people in Hong Kong hardly sleep. On our last night there, we went to the street market after dinner, and there was so much to see that we didn't realise how late it was (past 11 pm) because it was still so crowded. The shopping was incredible, look at the goodies the kids brought home.
There was something else that seemed to have made an impression on the son - all the Cantonese being spoken and how everything was written in Chinese. He is now very interested in learning Cantonese and Chinese.