2026.04.12

news

A spring tradition! Whale shark will soar through the sky again this year! We will be raising our "Whale Shark Banners."

2026.02.25

news

Osaka Aquarium Kaiyukan Co.,Ltd has renewed its recruitment website (new graduate recruitment, mid-career recruitment)

2026.01.26

news

[Finished] Setsubun at Kaiyukan from January 26th to February 3rd! "Demon Diver" will be appearing

2025.12.18

Sales/Shop

The Kaiyukan Official Shop has reopened after renovations

The Kaiyukan Official Shop, located on the third floor of the Entrance Building, will reopen on Thursday, December 18, 2025. Opened in July 2013, the Kaiyukan Official Shop is exclusively open to visitors. Offering a wide selection of exclusive merchandise, including items curated by aquarium keeper, the shop has become a popular souvenir and memento of visitors' visits. This renovation, based on the concept of the "Product Planning Office (tentative name)," focused on every detail, from the interior design to the furnishings. The shop features fixtures inspired by tools used by aquarium keeper for feeding, including buckets and damsels (large containers primarily used for temporarily storing and transporting fish), allowing customers to enjoy a unique atmosphere. In addition, new merchandise, including towel handkerchiefs, tote bags, drawing rulers, and drawstring pouches, will be available with the renovation. If you're visiting Kaiyukan, we encourage you to stop by the revamped official shop and discover merchandise that will help you take Kaiyukan the excitement of your visit. *In order to reduce the burden on the environment, our aquarium has stopped providing paper bags in our shops. We appreciate your understanding and cooperation. Overview Location: Kaiyukan Official Shop, 3rd floor of the entrance building Hours: Same as Kaiyukan opening hours New products Towel handkerchiefs (Whale shark shark, California sea lion, Southern rockhopper penguin) Mini tote bag (Pacific Ocean, penguins) Drawing ruler (Whale shark, Southern rockhopper penguin) Drawstring bag (blue vivid, yellow vivid)

2025.11.20

news

[Ended] Merry Christmas from Underwater! "Santa Diver" Makes His Appearance

2025.10.01

news

Kaiyukan welcomes its 90 millionth visitor

On Wednesday, October 1, 2025, we welcomed our 90 millionth visitor. We would like to express our sincere gratitude to everyone who has visited us so far. We will continue to try new things to convey the wonder and beauty of the natural environment and life to visitors from all over the world and to inspire them. ▼Scenes from the commemorative ceremony▼Scenes from the special guide by the museum director

2025.09.29

news

The Osaka Aquarium Kaiyukan Co.,Ltd page has been published

2025.06.12

Research and studies

Research into artificial breeding of Southern rockhopper penguin wins the Koga Award, the highest award from the Japanese Association of Zoos and Aquariums

The artificial breeding research of the Southern rockhopper penguin, which is being conducted jointly with Kasai Rinkai Aquarium, has been awarded the Koga Award, the highest award of the Japan Association of Zoos and Aquariums (JAZA), to which both zoos and aquariums belong, and was presented at the association's general meeting held on Thursday, May 22, 2025. In 2011, Kaiyukan began research aimed at elucidating the breeding ecology of this species, which is at risk of extinction in the wild and whose captive population in Japan is also declining, and establishing artificial breeding techniques. In 2016, in collaboration with Kasai Rinkai Aquarium, the world's first artificial insemination using liquid preserved semen was successfully performed on this species in the same year. In 2017, the two zoos and aquariums signed a joint research agreement and began artificial breeding using frozen preserved semen with the aim of further developing the research. In 2022, a chick born at Kasai Rinkai Aquarium was found to have been artificially inseminated using frozen semen, marking the first successful breeding of this species in the world, and in 2024, a chick born at Kaiyukan became the second successful breeding case in the world. Award ceremony at the General Assembly of the Japanese Association of Zoos and Aquariums (JAZA) (provided by Toyohashi Zoo and Botanical Gardens) In recognition of 14 years of research achievements, the Koga Award was awarded by the Japanese Association of Zoos and Aquariums. The Koga Award is the highest award given by the Japanese Association of Zoos and Aquariums to zoos and aquariums that have made outstanding contributions to the breeding of rare animals (species that are difficult to breed and are globally important). Since its establishment in 1986, 37 awards have been given, making this the 38th. Kaiyukan and Kasai Rinkai Aquarium hope to use the technology developed in this research to continue breeding the Japanese Southern rockhopper penguin through in-Aquarium breeding and, in the future, to contribute to the conservation of penguins in the wild. We will continue to work on this issue to advance research. For more information about artificial breeding research, click here. A chick born through artificial insemination using frozen preserved semen at the Kaiyukan in 2024. Artificial insemination in progress.

2025.03.28

Living creature information

[Notice] Renovation work on the "Aleutian Islands" tank [From April 9th]

Please note that the "Aleutian Islands" tank will be closed to the public from April 9, 2025 due to preparations to improve the breeding environment. Construction is scheduled to be completed after autumn 2025. We plan to report on the life of the Tufted puffin puffins in the back yard on the "Behind the Scenes at Kaiyukan " blog on the Kaiyukan website.

2025.02.26

news

[Various decorations and events will be available from March 5th!] "Kaiyukan" and "Tempozan Marketplace" are celebrating their 35th anniversaries.

On July 20, 2025, "Kaiyukan" and "Tempozan Marketplace" will celebrate their 35th anniversary. The slogan for the 35th anniversary of "Kaiyukan" and "Tempozan Marketplace" is "Heart, Huhuhu". We aim to be a place that is "a little" exciting and makes everyone's hearts laugh. The symbol mark is a "piece of excitement" that is "a little" exciting. It is designed to be like a jigsaw puzzle piece that combines to form one shape. In addition to the "Great Barrier Reef" tank, which reproduces the world's largest coral reef and was reopened on Thursday, November 28, 2024, and the coral reef associated with "35 (coral)", the design incorporates the Tempozan Giant Ferris Wheel and the Santa Maria sightseeing boat of the surrounding facilities. In addition, a special website will be opened on March 5th to celebrate the 35th anniversary. We will be celebrating our 35th anniversary with a variety of decorations and events to liven up the anniversary year, so be sure to check out the special website for event information.