It is said to be the largest underground aquarium in Busan, reaching a depth of three floors, with a tunnel shark and a mouthful of Christie-like teeth visible. The aquarium is said to have 250 varieties, about 3,5,000 marine life from all over the world, such as otters, sharks, penguins, octopuses, etc., as well as water musicals - mermaid princess performances, voiceover plus mermaid princess sister's body is very beautiful, and then go all the way. There is also 3D The projector takes us into the underwater world of adventure, which is definitely a place worth visiting.