Oarai Town in Higashiibaraki District, facing the Pacific coast, is home to many nuclear-related facilities and research institutes in Ibaraki Prefecture. Lake Hinuma is rich in clams and a variety of fish can be caught. Oarai Coast, where cold and warm currents meet, boasts the highest seaweed yield in Japan. Adjacent to Mito City and Hitachinaka City, it offers convenient access and excellent transportation. Aqua World Oarai is a popular tourist spot. A large aquarium where you can see a wide variety of fish, both large and small. The area around Aqua World Oarai is home to a variety of facilities, including a museum and a torii gate, making it a leisure spot where you can spend the whole day without getting bored.