Nanjing Underwater World is located in the Sun Yat-sen Mausoleum Scenic Area. The aquarium has over 10,000 animals representing over 200 species. It is home to 6 emperor penguins from Antarctica, over 20 warm-weather penguins, and over 30 marine mammals such as polar bears and arctic foxes. In the transparent tunnel, you can watch the thrilling “Dancing with Sharks” show or the colorful fairytale “Mermaids” show.