Underwater worldbuilding is the creative process of designing fictional aquatic environments, including their ecosystems, cultures, and inhabitants. This genre often explores the unique challenges and adaptations of life beneath the surface, such as pressure, light, and temperature variations. In underwater worldbuilding, elements like marine life, underwater cities, and mythical creatures are commonly featured. Writers and creators may draw inspiration from real-world oceans, incorporating aspects like coral reefs and deep-sea trenches to enhance realism. This imaginative setting allows for diverse storytelling opportunities, from adventure to exploration and environmental themes.