The most recommendable thing is to watch the mermaid show and share the dance with sharks! It deserves to be the underwater world of the seaside cities. It is much stronger than the ocean world of Wuhan. It 's a rewarding trip! Tropical rainforests, crocodiles, all kinds of reptiles, the underwater world is just beside the sea, it feels very much! I recommend you all to Beihai to go to the underwater world! __________