I took my children to Qingdao for a few days on National Day and revisited the Qingdao Underwater World. The epidemic gradually improved and there were many people playing. However, after so many years of baptism, the underwater world in Qingdao became better and better. The environment was very clean and the temperature inside was very suitable. From each pavilion you can look out to the sea, blowing the sea breeze, it is really comfortable.