Aqua World Oarai Aquarium

The largest ocean museum in the Kanto region with Japan’s largest collection of sharks

There are 68000 animals on display representing approximately 580 species. This is an interactive, and not just a viewing, aquarium which you can explore and get in touch with 45 species of shark and encounter the difficult-to-breed ocean sunfish.
Business Hours
Saturday ( 9:0 AM ~ 5:0 PM )
Sunday ( 9:0 AM ~ 5:0 PM )
Weekdays ( 9:0 AM ~ 5:0 PM )

[close] Closing times will differ depending on the year. Please refer to the homepage.
Adult: 1,850 JPY
Children: 930 JPY

High school students and older must pay adult admission while toddlers 3 years and older pay 310 yen
Aqua World, 8252-3 Isohamacho Oaraicho Higashiibaraki-gun Ibaraki
(029) 267-5151


See, touch and learn about life in the sea

1 hour by train directly from Tokyo. The Kanto region’s largest aquarium is composed of 9 areas. In the Encounter Sea zone, there is the giant water tank that is the largest in the entire facility in which you can see the amazing sight of 20,000 fish representing 80 species from offshore Oarai. In the Seas of the World zone, you can see the sharks that are the symbol of the aquarium. Within this zone, you will want to focus on the common smooth-hound, the only shark of its type found only at this aquarium. In the Ocean Sunfish tank which is the largest of its type in the entire nation, several ocean sunfish are raised. The aquarium also has a Museum zone that is not found in any other current aquarium in which there are numerous deeply interesting exhibits such as a model of a shark 4 meters in length, a model of the world’s largest ocean sunfish, and a specimen of a shark’s tooth. Another attractive feature is the many opportunities for interaction. There is the popular program of the 50-minute Exploration Tour at the Backyard of the aquarium. Separated into the 2 courses of General and Specialist, they are held 3 times a day. The numbered tickets that are distributed when the aquarium opens are given out on a first come, first serve system so you will want to come to the aquarium early. Then, there is Kidsland which is popular with children. They can watch the 15-minute Fun Fact Fishing video which is shown 4 times a day and enjoyably learn about ocean life through experiments. At the Touching Pool where you will be able to get in touch with the animals, you can pick up creatures such as starfish and sea urchins. Doctor fish which nibble on the cuticles of people are raised here and once you place your hand into the water tank, it’s fun to see the fish close in and start nipping at your skin. You can also observe the Penguins’ Walk Time, and the Aqua Viewing is also popular for being able to chat with the divers in the water.

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