The
Osaka Aquarium Kaiyukan, referred to in Japanese simply as the “Kaiyukan”, is
one of the most popular tourist attractions in Osaka, receiving mostly positive reviews on
internet social media sites. Impressive
in terms of its large scale and the large variety of animals it has on display,
it is often on the “must see” list of visitors, both domestic and from other
countries. Over the years, I have taken
about two dozen guests to the Kaiyukan, and all of them went home impressed.
A Grand Entrance
The Kaiyukan is most notable
for its huge size. The entrance gates
are located on what is designated as the 3rd of 8 floors. (Interestingly, the aquarium building itself
doesn’t have a “1st floor” – the floor designations are shared with
the shopping mall next door. Apparently
there is a “1st floor” there.)
Upon entering the Kaiyukan, you first walk through an aquarium arcade
tunnel with tropical fish swimming overhead and to your sides.
After
exiting the tunnel, you ride an escalator up the equivalent of 5 floors to the
8th floor. This escalator
ride itself was quite a thrill the first time I experienced it. At the top, you find yourself in what the
aquarium pamphlet describes as a Japanese forest. (Each section of the aquarium is intended to
represent a specific environment in a different part of the Pacific Ocean Rim.)
This
area has an artificial waterfall and artificial trees that look so realistic
that it is hard to distinguish the real flora from the fake.
The
first enclosure in this “Japanese forest” is designed to look like a rocky
riverside and is home to a group of Asian small clawed otters (Amblonyx
cinereus). A small sign posted at this
enclosure explains that these animals are actually native to Southeast Asia and
not Japan,
but if you cannot read Japanese, that fact would elude you. In the photo below, a staff member is feeding
small fish to the otters.
After
descending from the 8th floor to the 7th floor, you can
see the underwater part of the otters’ enclosure. Since the otters are so captivating and this
is one of the first exhibits, visitors tend to accumulate here, and the crowd
can get so thick that even adults have a hard time seeing the animals. From here, the route is a spiraling downward
slope until you eventually reach the 4th floor. On a weekend or holiday, the overcrowded
conditions generally persist until about the 6th floor. From that point on, it becomes a little
easier to relax and get a good look at the exhibits.
Marine Mammals and
Birds
After the “Japanese Forest”,
the next exhibits house what are labeled as Harbor seals (Phoca largha) (should
these be labeled as “spotted seals”?) and California sealions (Zalophus
californianus).
Separated
from visitors by only an acrylic wall, the animals seem to be close enough to
touch. It is quite an impressive visual
effect.
The
way that the water within the enclosure comes to the level of visitors’ ankles,
and in some cases eye-level, creates an exciting effect. You almost feel that you
are standing in the water with the animal.
Although
the water in the exhibits for the seals and the Pacific whitesided dolphins
(Lagenorhynchus obliquidens) appeared to be quite deep, the exhibits seemed to
be rather narrow from front to back and from left to right. I got the impression that the animals could
swim up and down quite a bit, but couldn’t really swim very far in a lateral
direction. Perhaps this is an illusion
created by the distortion effect of the water or the curve of the thick acrylic
wall. I guess that the only way to find
out for sure is to take a backyard tour and see the other side of the glass. Although it was quite impressive to see these
creatures right in front of my face, it was a bit distressing to think that
they might be living in very cramped quarters.
Below
is the exhibit for the Capybara (Hydrochoerus hydrochaeris). Somehow this exhibit struck me as being
similar to a diorama in a department store show window. It was creatively decorated to resemble a
natural environment, but since the overall space was fairly small and there was
only artificial lighting, it had a slightly drab and artificial atmosphere.
Can
you see the capybara?
Below
is the “Antartica” section, the enclosure for the Adelie penguins (Pygoscelis
adeliae), Gentoo penguins (Pygoscelis papua), and King penguins (Aptenodytes
patagonicus). The exhibit featured a
snow machine which showered ice shavings down upon the birds.
Unfortunately,
the temperature difference between the cold environment inside the enclosure
and the warm air outside causes condensation on the exhibit windows. Consequently, it is hard to get a clear sharp
photograph of the birds.
The Fish Tanks
Without question, the most
impressive exhibits in the Kaiyukan are the large fish tanks, especially the
huge one in the center representing the Pacific Ocean.
The
center tank is 3 stories tall and so large that it houses large sharks, rays,
and even a whale shark. This first photo
shows the center tank as seen from the 6th floor.
This
is a large sunfish – it was larger than a pizza pan.
Thousands
of sardines and anchovies.
This
is the center tank as seen from the 5th floor.
The Great Barrier Reef section.
The
center tank as seen from the 4th floor, the lowest floor for this
tank.
The
below photo is of the deep sea creatures’ exhibit.
The
big star of the center tank is the whale shark (Rhincodon typus). It is the most impressive creature in the
center tank, and it makes a huge impression on visitors. In fact, the whale
shark is so popular that the Kaiyukan uses a whale shark as one of its mascot
characters, and there are even whale shark plush dolls in the gift shops.
Although
I recognize that these huge creatures are show stoppers that bring in a lot of
visitors, I am somewhat concerned about whether whale sharks can be successfully
kept alive in the aquarium environment for long periods of time. Although not
much is known about their life history, it is thought that whale sharks in the
wild can grow as large as 15 meters long (one specimen caught off Taiwan was reported
to be 20 meters long and to weigh 34 tons), and estimates of the whale shark
lifespan vary from 60 years to as high as 100 years. In comparison, whale sharks kept at the
Kaiyukan seem to last only a few years.
The
present whale shark, a female named “Yuu-chan”, is about 5 meters long, and
estimated to be 7 to 8 years old. According
to information on the Kaiyukan website, she was caught in Japanese waters on
July 17, 2014 and moved to the Kaiyukan on August 25, 2014. I thought it was interesting that this
particular whale shark was given the same name as a previous whale shark that
had died only a month earlier. (Perhaps
there were too many remaining promotional materials and original goods plastered
with the name “Yuu-chan”.)
According
to internet news articles, the previous whale shark “Yuu-chan” (female) was brought
to the Kaiyukan in July 2011 but died July 16, 2014, after being in the
Kaiyukan for only 3 years. She was
caught in the waters off of Kochi
Prefecture, and it was
estimated that she was 7 to 8 years old. “Ten-chan”, another female whale shark that
had been exhibited along with “Yuu-chan” had died the previous week (July 13,
2014) after only 1 year at the Kaiyukan. Ten-chan was caught in August 2012, brought
to the Kaiyukan in June 2013, and was estimated to be 5 to 6 years old. (Coincidentally, another whale shark kept at
an aquarium in Yokohama
had died July 11, 2014 after 4 years in captivity.)
Whale sharks are very valuable
animals. On the IUCN red list of threatened species, they have been assessed to
be “vulnerable”, meaning that the species faces a risk of extinction in the
wild. They are also listed in Appendix
II of the Convention on International Trade in Endangered Species of Wild Fauna
and Flora, and the international trade of them is subject to strict regulation.
Although the whale sharks displayed at
the Kaiyukan were domestically caught in Japanese waters, considering how rare
and valuable these animals are, perhaps it would be wiser to leave them in the
ocean until more is known about them.
Educational Efforts
Besides the small signs and
name plates located near each exhibit, the Kaiyukan also has two special
exhibit rooms and a lecture hall. The theme of this particular temporary exhibit
had to do with fish body parts – I think.
(Can you tell I rushed through this area without paying full attention?)
Floating Aliens?
After completing the spiraling
route to the lowest level of the center tank, you take an escalator to the 3rd
floor to an area featuring tanks full of various jellyfishes. The lighting in this area is subdued, and
since the movements of the jellies are slow and gentle, it makes for a very
relaxing atmosphere. If they had seats in this area (they don’t) I don’t think
visitors would ever leave. If you have ever stared at a lava lamp, I think you
will know what I mean.
Opportunities for Close
Animal Encounters
The last part of the Kaiyukan tour
leads to a newly extended area that was constructed over the previously
existing entrance gate area. The theme
of this area is “Shintaikan” which translates to “new bodily experience”, and the exhibits
in this area promise to get you much closer to the resident animals. The first section represents the Arctic Sea,
and it features a group of spotted seals.
As you can see from the below photo, visitors can peer over the acrylic
wall and look directly at the seals only 2 or 3 meters away. While
it was nice to get such a close look at the animals, I think some
visitors might consider the enclosure to be too small for the resident animals.
The
below photo shows a pool which represents the Maldive Islands. Visitors are allowed to touch the sharks and
rays in the pool. While the fishes were basically docile and motionless, there were about 3
aquarium staff members frantically repeating instructions to visitors to not touch certain parts of the
animals such as their mouths or the tails of the rays. (Which
leads to a question - if there is any possible danger of injury at all, why even allow such contact in the first place?) There were also basins
and disinfectant dispensers for visitors to wash their hands before and after
touching the animals.
Immediately next to the touching pool was a display representing the Falkland
Islands. As you can see in
the below photo, visitors are separated from the birds by only an acrylic wall
and about 1 or 2 meters of distance.
Food and Souvenirs
There
was a coffee shop and a restaurant within the aquarium, but since I did not eat
there, I am unable to report on what kind of food they serve. With respect to shopping, there was a
souvenir shop area located immediately inside of the entrance and an even
larger museum shop located just outside of the exit. I would recommend shopping in the museum shop
after exiting the aquarium area because the floor space is about 4 times as large
as the shop near the entrance, and it has a greater selection of goods
including t-shirts, keychains, foods, toys, plush dolls, plastic figures of the
animals and fish in the aquarium, etc. There
is also a museum corner with books, rock and mineral samples, jewelry, and genuine
fossil samples such as prehistoric sharks’ teeth.
Getting There
The
nearest train station is the “Osakako” station of the Chuo Subway Line, which
at the location of the Osakako station, is actually elevated two stories above
ground. Upon exiting the station, you
should be able to see the giant ferris wheel which is located at the Tenpozan
Marketplace next to the aquarium. As you
get closer to the ferris wheel, you will see the aquarium building with its
distinctive blue and red walls and mural.
Admission is 2300 yen for adults, 1200 yen for students in intermediate
school and elementary school, and 600 yen for children 4 years or older who are
not yet in school. Although it is not
explicitly written in the pamphlet, I presume that children 3 and under will
get in free.
(Note:
All photos taken in this post were taken during a visit on December 14, 2014. The comments in this post are based on
observations made on that day.
Conditions may have since changed.
Please check it out for yourself!)