Introduction to Underwater World: Qingdao Underwater World integrates original tourism resources such as Qingdao Aquarium, Herbarium, and Freshwater Fish Museum. It has: the world's largest single acrylic cylindrical exhibition tank; the world's richest collection of marine life specimens Pavilion; the first in China to display the underwater world partially underground; the first professional jellyfish exhibition hall in mainland China - Dream Jellyfish Palace; the first in China to adopt various forms such as 180-degree conventional windows, 254-degree large windows and 360-degree cylindrical windows. The combined undersea tunnel structure maximizes the viewing range and angle of tourists; the first underwater world in China to introduce fluorescent murals from abroad, showing you dreamlike and deep ocean and universe scenes; the first open ocean in China The underwater world in the laboratory is accompanied by a marine science popularization classroom, realizing the organic combination of marine tourism and popular science education.