Introduction to Area A: Area A is the original Beihai Aquarium, which has a history of more than 20 years. It is the earliest and largest aquarium in China along with the Qingdao Aquarium. It is now a freshwater fish exhibition area with horseshoe crab ponds, There are exhibition halls such as the Coral Gallery, East Gallery Viewing Area, Tropical Fish Viewing Area, Turtle Pool, Koi Area, Middle Gallery Viewing Area, West Gallery Viewing Area, Crocodile Pool, Marine Animal Specimen Hall, among which the Coral Gallery and Turtle Pool are the most distinctive.