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  1. Home
  2. Places
  3. Osaka
  4. Osaka Aquarium Kaiyukan
A large whale shark swims in a blue aquarium tank, surrounded by small fish. Four silhouetted people stand in the foreground, watching and taking photos of the scene through the glass.
A group of emperor penguins standing on snow inside an indoor exhibit, surrounded by rocky and icy surfaces. The penguins are mostly facing left, with yellow and black markings on their heads and orange patches on their necks.
A large whale shark swims in a blue aquarium tank, surrounded by small fish. Four silhouetted people stand in the foreground, watching and taking photos of the scene through the glass.
A large spider crab stands on the sandy floor of an aquarium, surrounded by rocks and swimming fish, with blue lighting illuminating the underwater scene.
Two dolphins swim gracefully underwater in clear blue water, with sunlight filtering through the surface and rocks visible below them.
A round, spotted seal floats underwater with its eyes closed and mouth slightly upturned, appearing to smile peacefully in clear blue water.
Osaka

Osaka Aquarium Kaiyukan

4.5 (58364)AquariumTourist AttractionPoint Of InterestEstablishment
Last updated May 9, 2026

Osaka Aquarium Kaiyukan, situated in the Minato ward of Osaka, stands out as one of the world's most expansive and innovative public aquariums. This facility takes visitors on an aquatic journey through various regions of the Pacific Rim, each tank representing a specific area of the Pacific Ocean.

The aquarium's layout is designed to take visitors on a descending spiral path, allowing them to view marine life from different depths and perspectives. One of the main highlights is the massive central tank, which simulates the Pacific Ocean environment and houses awe-inspiring whale sharks alongside a diverse array of other marine species.

Osaka Aquarium Kaiyukan is home to around 30,000 creatures encompassing 620 species, including otters, dolphins, penguins, jellyfish, and rays, presented in 15 tanks, each focusing on a specific region of the Pacific Rim. The "Japan Forest" tank, designed to resemble the Japanese woodland, and the "Antarctic" tank, home to playful penguins, are among the visitor favorites.

The aquarium is not just about observation; it's an educational experience, offering insights into marine ecosystems and the importance of conservation. For a more interactive experience, visitors can opt for the Kaiyukan's touch pool or take a behind-the-scenes tour to learn more about marine life and the workings of an aquarium.

Hours:

9:00 AM to 8:00 PM

Closed:

Open all year, except January 8th and 9th, 2025​

Available:

All year

Minimum Age:

All ages are welcome

Fees:

Adults (16+): 2,700 yen

Children (7-15): 1,400 yen

Young children (3-6): 700 yen

Toddlers (2 and under): Free


Hours
Sunday: 9:30 AM – 8:00 PM
Monday: 10:30 AM – 8:00 PM
Tuesday: 10:30 AM – 8:00 PM
Wednesday: 10:30 AM – 8:00 PM
Thursday: 10:30 AM – 8:00 PM
Friday: 10:30 AM – 8:00 PM
Saturday: 9:30 AM – 8:00 PM
Phone
+81 6-6576-5501
Website
www.kaiyukan.com


The area

Address
1-chōme-1-10 Kaigandōri, Minato Ward, Osaka, 552-0022, Japan

Hours

Sunday: 9:30 AM – 8:00 PM
Monday: 10:30 AM – 8:00 PM
Tuesday: 10:30 AM – 8:00 PM
Wednesday: 10:30 AM – 8:00 PM
Thursday: 10:30 AM – 8:00 PM
Friday: 10:30 AM – 8:00 PM
Saturday: 9:30 AM – 8:00 PM

Phone

+81 6-6576-5501

Website

www.kaiyukan.com

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What other travelers are saying about Osaka Aquarium Kaiyukan

It’s recommended to visit this aquarium for at least 3 hours. It is spanning across 8 floors which covers the species of many regions. The most magnificent is the big tank of Pacific Oceans which cover from 7F till 3F and stingrays, sharks are inside as well as feeding time throughout the day as scheduled. Shows also very attractive, but narrator only speaks Japanese. Penguin, dolphin, sea lions are all available. Good to bring kids visiting.
Profile
Allen Teo
Mar 5, 2026
Went to this aquarium specifically to see their whale sharks. There are two whale sharks named Kai (male, ~5.5m) and Yu (female, ~6.2m) in their massive 5.400-ton Pacific Ocean tank. The tank spans floors 6 down to 4, allowing visitors to view them from multiple angles and levels as they swim with other marine life. The aquarium is unidirectional, visitors take the escalators to the 8th floor and walked down. The aquarium is popular and there are lots of visitors including a group of kindergarten teachers and their teachers. However, the crowd moved smoothly. Wheelchair users and parents with young children in strollers are guided by the staff to elevators. Staff are courteous and helpful. Advisable to buy the e-tickets in advance and avoid the queue to buy the tickets.
Profile
Le Rock Steady
Mar 3, 2026
Osaka Aquarium Kaiyukan is one of the most impressive aquariums I’ve visited. The main tank with the whale shark is absolutely stunning and gives you a clear view from different levels as you walk down. The layout is well-designed and easy to follow. There are many different marine species, and the jellyfish section is especially beautiful and relaxing. It’s suitable for both adults and kids. Definitely worth visiting if you’re in Osaka!
Profile
Nutt Taro
Mar 3, 2026
I decided to visit the aquarium at the spur of the moment, and I must have gotten lucky because I was able to walk right up to the ticket window and got in immediately. The exhibits are very well designed, with the walking path winding around and around so you start out at the top of the exhibit and work your way deeper to see what other fish and animals live further down. The variety of creatures is astounding - everything from otters to seals to penguins to whale sharks. The main attraction is the massive tank at the center housing thousands upon thousands of fish. This is where you'll find the sharks, massive rays, and gigantic whale sharks. Perfect for families and solo travelers alike!
Profile
Christian Bushnell
Jan 17, 2026
A tip to other people visiting: Buy your tickets at the start of the day or better yet the day before ONLINE IF POSSIBLE - I don't care what google says in terms of traffic flow, whatever people say in terms of 'walking in' it is simply not true Buy them online especially if weather predictions state that there could be any chance of rain - everyone has the same idea of visiting this place as a rainy day event Otherwise you will have to buy your ticket to reserve your time slot to enter when you get there - they won't even let you in five minutes early. Then you have to pretend you're interested in buying stuff at the marketplace next door to the aquarium to kill both your feet and your time for the next three hours. But aside from the hassle of buying your entry ticket, the aquarium itself is wonderful. Its streamlined, super tidy, well ventilated with lots of information littered around the aquarium. All the staff speak english and very willing to answer all your questions. The way the aquarium is designed, you start at the top of the building and make your way down in a cyclical fashion - the aquarium revolves around one gigantic tank. However, I spent a good two and a half hours without realising it - I don't know how they managed to get two baby whale sharks in there. There is a wide range of animals to see, I particularly liked the jellyfish section and I'm happy I got to see my favourite fish - the garden eel. There are plenty of toilets and one cafe. I recommend eating before arriving to the aquarium in general, the prices of food in the marketplacs next door is expensive imo even by tourist standards The aquarium is accesible friendly, wide, with guide lights and gently sloped floors with elevator access if needed. Though it can difficult for those who struggle with seeing in the dark at times. TL:DR - Yes I would recommend this aquarium, I implore to book tickets advance and online - save yourself the grief of turning up on the day and then having to wait three hours. Eat beforehand and make sure to have a good time :) To avoid crowds, go on a weekday where its super sunny, otherwise prepare for congestion on rainy days and on weekends
Profile
Minnie
Dec 27, 2025

Nearby attractions to see

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A Japanese Shinto shrine with wooden structures, traditional curved roofs, lanterns, and ema plaques for wishes hanging on a board. The area is peaceful, surrounded by trees and stone paths.

Ikukunitama Shrine

Nearby attractions to see

The image shows the Tower of the Sun, a tall, white sculpture with abstract features, standing in a park with flower beds of yellow and purple blooms and leafless trees under a clear blue sky.

Expo '70 Commemorative Park

A busy city street in Japan filled with colorful vertical signs in Japanese and English, traffic lights, and power lines, with tall buildings in the background.

Nipponbashi Denden Town

A modern white bridge crosses a river in front of a large, dome-shaped stadium and an adjacent office building, both under a clear blue sky. Trees line the riverbank.

Kyocera Dome Osaka

A Japanese Shinto shrine with wooden structures, traditional curved roofs, lanterns, and ema plaques for wishes hanging on a board. The area is peaceful, surrounded by trees and stone paths.

Ikukunitama Shrine


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Day guides that include Osaka Aquarium Kaiyukan

Osaka Aquarium Kaiyukan
How to spend a day at Kaiyukan Aquarium and nearby attractions
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 …

Frequently Asked Questions

Yes, Osaka Aquarium Kaiyukan is often considered worth a visit, especially for marine life enthusiasts and families. It is one of the largest and most impressive aquariums in the world, showcasing a wide variety of aquatic species from the Pacific Rim in well-designed, engaging habitats. The aquarium provides educational insights into marine ecosystems and offers a unique opportunity to observe rare species up close, making it a captivating experience for visitors of all ages.

The amount of time spent at Osaka Aquarium Kaiyukan can vary depending on your interest level, but generally, visitors spend about 2 to 3 hours exploring the exhibits. The aquarium is designed in a spiral pattern, allowing you to observe different habitats as you descend from the eighth floor to the ground level. To fully enjoy and appreciate the diverse marine life and exhibits, allocating a few hours is recommended.

While Kaiyukan is one of the largest aquariums globally, it is not the largest. It is, however, one of the most spectacular, with significant volumes of water and numerous marine species on display. The aquarium is particularly famous for its impressive Pacific Ocean tank. Other larger aquariums exist around the world, but Kaiyukan remains a standout for its design and the variety of species exhibited.

Osaka Aquarium Kaiyukan is one of the largest public aquariums in the world. It houses 15 large tanks, each representing a specific region of the Pacific Rim, with the central tank representing the Pacific Ocean. This central tank alone holds 5,400 cubic meters of water. The total water volume of all exhibits exceeds 11,000 cubic meters, and the facility showcases various marine and freshwater species.

To avoid crowds, it's best to visit Osaka Aquarium Kaiyukan early in the morning or later in the afternoon, closer to the closing time. Weekdays are typically less crowded than weekends. Also, visiting during feeding times can be particularly interesting, as you get to see more active behavior from the marine life. However, it's advisable to check the aquarium's official website for the latest information on opening hours, feeding times, and any special events that might affect your visit.