The main aquarium is marvelous, depth of 8 floors filled with whale sharks , tiger sharks, oceanic manta rays, stingrays and schools of fish . You can pet some sharks and rays on the end of route. *_*

The largest in the world, with 8 floors that spiral down a large center tank that’s 9 meters deep and holds 5,400 cubic meters of water.

Get the aquarium pass from the train station (2,500 yen) to take advantage of a day pass on non-JR train line and a discount on other attractions in the city .

Entrance fee for the aquarium alone is 2300¥. Other entrance fee packages are available i.e., aquarium+ferriswheel, aquarium+cruiseship etc. Very crowded during weekends and holidays. A must see!

Really fascinating and huge. There are really a lot to see. Go on a weekday, in the afternoon. You’ll see more aquatics than humans. Stay for a least one feeding session, and you’ll never regret it.

Amazing aquarium with a huge center tank that has a lot of sharks, sting rays and the whale shark . Also lots of different squid and you can pet some sharks and sting rays at the end of the tour !

Their tanks don't do a great job of pretending to be real, but you can overlook that when everything is bigger and crazier than other aquariums . Whale shark ! Giant spider crabs ! Crowded AF.

Amazing aquarium . The whale shark and the penguins were great. Be sure to get the aquarium + subway pass. Very crowded on weekends.

Whale shark is the highlight. Dont miss out their feeding time! Touch pool is full of rays and shark as well , you may have a feel of their skin texture

It's an amazing aquarium ???? each floor down was a wonder at the sea creatures and there's also an area at the end to touch the Sharks and sting rays

read the signs. explanations are in Japanese and English. a good in-depth explanation of what they are trying to showcase. theme of aquatic life around the Ring of Fire.

If you are coming from Osaka centre get the subway and aquarium combined ticket. It's a flat rate subway ticket so you can take the subway anywhere!

Compact and entertainment packed, kaiyukan is also well designed and starred various creatures in beautiful settings. One of the best aquarium I have visited :)

This amazing aquarium is open until 8pm. So beat the crowds by coming towards the end of the day - 5.30pm onwards. You'll miss the animal feeding but you'll have peace !

Can be quite crowded so wear earplugs if you’re sensitive to noise. But definitely worth a visit! Continue walking when you see the whale basin as you go down floors and see it from other angles.

There is a big central tank in which you can see the main star of the aquarium with sharks, stingray and other fishes . Nice to see it in different angles

The density of cool stuff per square feet here is pretty incredible. Recommended if you are looking for something to do for the day in Osaka!

they have a whale shark in the aquarium ! but everything else is pretty old. I went on a weekday and it was still crowded as well . check their website for special deals.

It's certainly one of the biggest, not quite sure it's one of the best. Most impressive specimens of Japanese Spider Crabs I've seen! On the whole maybe a bit too many animal animals for an aquarium .

The aquarium isn’t that big. Just levels deeper but seeing the same thing above. If nth else in your itinerary can add this in, near legoland too.

Worth the money to come here. Get to see all different sort of sea animals that you don't really get to see. Well maintained too, impressive!

This is so worth it. Allow urself 2.5hrs at least to enjoy it. There are other things to do there like the wheel and Legoland! Great way to spend half a day.

The most beautiful Aquarium ever seen. You can see and even touch the animals at a very close distance. A must-see when in Osaka!

If you're a tourist , get the subway pass which includes admission to the aquarium (2900 yen); great value . The main tank has many points of view , so don't spend too long when you first see it.

Maybe one of the best aquariums I've been to! You will definitely see creatures for the first time!

A big of a trek on the train to get to if you are further downtown but worth it! Love the jellyfish room and huge tank of whale sharks .

It's open until 8pm - make sure you check the calendar to see that it's open. Skip the crowded whale shark exhibit windows and turn the corner, there are fewer people and better views as you head down

Very nice aquarium with lots of different tanks. Try to avoid visiting on weekends since it’s already very crowded on workdays.

Very well designed aquarium but could find any emergency exits. You have to finish the entire loop to come out from it.

I don't think that i will be interested in this kind of place but after visited. This is one of my favorite place in Osaka. So amazing!!

Sea lions trying to waddle on land is extraordinarily funny to watch so try to catch a feeding! Sardines and spider crabs were cool.

Large aquarium , with some amazing creatures. 2000 yen. Went on a Sunday and it was insanely crowded . Cool water tube at the entrance. You can also get a Japanese guide downloaded onto your DS.

Every whale shark and manta have their own unique designs that allow you to identify them individually. Memorize their spots so you can say hi to them the second time you come!

One of the nicest aquariums I've had the pleasure of visiting anywhere in the world; fantastic design and great diversity of creatures.

Sea otters, penguins, dolphins and sea lions are just some of the highlights of Kaiyukan Aquarium . But a major attraction is the awe-inspiring giant whale shark . His name’s Kai-kun.

Kawaii , spend half an hour in front of the biggest tank. Superb!! Really recommended

One of the best aquariums that i have seen so far. better than barcelona's & chicago's. The whale shark is impressive! ????

Beautiful aquarium . Every kind of marine life you can think of. Well designed exhibits and routes.

So beautifully designed that even if it was any other sort of museum , it would still be a delightfully magical experience.

Smart planned, one route and lots of chances to see the tanks and fishes ! ????????

Great for children. Their whale shark is the main attraction here. In my opinion, nothing else is recommended otherwise????

several floors of amazing exhibits ! very nice! if you time it right, you can get near the sea lions when someone has a ball to play with them with.

Nice aquarium with lots of species. I loved the gift shop too

It is amazing, a wonderful experience if travelling with kids, my 1.8 year old toddler loved it.

adults and children alike should get the stamp booklet at the entrance for ¥350 for an additional treasure hunt element.

Very good, lots of fish tanks. Love sharks and rays ;) not far from train station .

cool but so crowded - avoid going on weekends and holidays

Good aquarium if you've only seen restaurant fish tanks your entire life, then again this is relatively inexpensive . The notable one in Japan is in Okinawa.

Very beautiful aquarium with lots of unseen sea animals .

One of the best aquariums I have been to.