Introduction to the Survey Hall Pier: The Survey Hall Pier is located between the two harbor basins in the port area. It is 316 meters long and 60 meters wide. It is a caisson-type vertical structure. During the Olympic Games, in order to ensure the fairness of the competition, all participating boats must be measured here before they can be launched into the water. Because it is a temporary building, it was transformed into a luxury cruise terminal after the game and is now an important cruise docking area in northern China.