Kaiyukan Aquarium in Osaka is one of the largest and most impressive aquariums in the world. Located near Osaka Bay, it offers not only an amazing underwater experience but also many fun spots to explore nearby. This guide will help you enjoy a full day around Kaiyukan. Let’s start your perfect day! Take a Train to Osaka's Kaiyukan Aquarium Area Kaiyukan is located in the Tempozan Harbor Village area of Osaka. How to Get There: From Osaka Station: Take the JR Osaka Loop Line to Bentencho Stati