I would say 4 and a half! :) I had a 10 hour stopover in HK so wanted to make the most of my time there! I had the 8 hour tour with Frank and I requested to go to a few extra places. It wasn't a rushed tour (which was good as I had very little sleep) and we managed to fit lots in as well! Frank organized everything perfectly and I got to see/do everything I wanted to! Thank you very much! Ruqi.