We arrived at the Chek Lap Kok Airport around 8 in the morning. We went through the immigration line quite a bit surprised that we were almost the first in the queue. It only took us a minute or two to get our passport stamped and be admitted to this “country”. For convenience, we purchased our octopus cards right away. For convenience + cost savings, we also purchased all our entrance tickets at the China Travel Service (CTS) booth. CTS offers discounted tickets to all the major tourist attractions in Hong Kong (and Macau).