The goal of the Underwater World is to create an online underwater paradise with a daily active user target of one million. Here, users can wander through the ocean depths, explore the endless secrets of the sea, visit various underwater scenes, go on treasure hunts and adventures with friends, participate in the various underwater themed activities held daily in Pacific City, interact with friends, and share happiness and worries. Children can enhance friendships, gain new friends, and cultivate a spirit of mutual assistance and love on this little island. The Underworld World invites you to enjoy a happy underwater life! In this underwater park, you can transform into one of the millions of magical marine creatures, own your own little house, read books at the underwater library, watch movies at the underwater cinema, travel between different underwater towns on a Mola mola fish, participate in various underwater labor activities, uncover the secrets of magic, compete with friends to snatch treasure chests, join different underwater organizations, become a guide to help other small fish, or even become a "little iron fish" to assist in the development of the Underwater World. You can also earn shells by completing daily tasks... Additionally, you can adopt your own pet and own your own underwater toys, select all kinds of beautiful and comfortable furniture, and make your little house unique and one-of-a-kind.