
Guide
Kaiyukan is one of the world's largest aquariums, located in the Minato Ward of Osaka. The defining feature of the facility is its exhibition design, which follows the theme of the Pacific Ocean's currents. As you move through the exhibits, you descend from the upper layers toward the deep sea, creating an immersive experience of the ocean's life cycles. The sight of majestic whale sharks gliding through the massive central tank and the seasonal appearance of rare marine life offers a deeply moving experience for all visitors.
Kaiyukan is more than just a display facility; it was established with the goals of understanding, protecting, and researching marine ecosystems. The animals are housed in environments that replicate their natural habitats using advanced technology to maintain and pass down their biological traits. For instance, news regarding research into the breeding of crested alcids or the birth of California sea lion pups highlights the facility's contribution to biodiversity. Through these research activities, visitors can learn about the richness of the ocean and the vital importance of its preservation.

The absolute highlight is the massive central tank. Here, you can observe the elegant movements of whale sharks and rays. The exhibition area is structured by 'water layers,' allowing for an immersive journey where you feel as though you are diving deeper into the ocean, from shallow waters to the deep sea. Additionally, special seasonal exhibitions and 'feeding time' events are incredibly popular, as they offer a rare glimpse of animals behaving naturally. Recently, the birth of a California sea lion pup has also drawn significant attention, showcasing the miraculous moments of life.
Kaiyukan offers a different atmosphere depending on when you visit. During the bright daylight hours, it is ideal for observing the active movements and vibrant colors of various marine species. On the other hand, during special events like the 'KAIYUKAN Night Aquarium,' the lighting is dimmed to create a more mysterious and enchanting atmosphere. Because the exhibits and events change with the seasons, every visit offers new discoveries. For families or couples, the quiet mornings on weekdays or the tranquil evening hours are highly recommended for a relaxed experience.

Beyond just viewing the tanks, there are programs designed for deeper learning. For example, the 'Kaiyukan Guided Tour' allows you to gain a deeper understanding of marine life through explanations from expert staff. The facility also offers 'Audio Guides' and the 'Kaiyukan Explorer Stamp Notebook' to make learning fun for both children and adults. To get the most out of your visit, we recommend checking the feeding schedules in advance so you don't miss the exciting feeding scenes.
The Tempozan area, where Kaiyukan is located, is a hub for leisure and entertainment. Right next to the aquarium is 'Tempozan Marketplace,' where you can enjoy a variety of dining and shopping options. The Tempozan Giant Ferris Wheel also offers a stunning panoramic view of Osaka Bay, adding to the excitement of your visit. Access is very convenient, with buses and shuttle boats available for travel within Osaka or toward Kansai International Airport (KIX), making it an excellent base for your travels.

To ensure a comfortable visit to Kaiyukan, please keep the following in mind: