Churaumi Aquarium Okinawa

Churaumi Aquarium (美ら海 beautiful ocean aquarium) is one of the premiere tourist attractions in Okinawa prefecture.  The large aquarium is located within the even larger and interesting Ocean Expo Park on the Motobu Peninsula.  Boasting one of the worlds largest indoor tanks, the stars of the complex are three whale sharks housed with many other fish of varying sizes.

Though I’ve lived in Okinawa for over five years, I had my first opportunity to visit Churaumi only this past weekend.  The aquarium is very easy to find since there are easy-to-read signs pointing the way on major streets from Naha.  For a scenic route, take route 58 north and follow the signs.  For a quicker trip try the expressway (it’s a toll road).

The surprising thing about the Ocean Expo park is the sheer size of it.  We went in November which was after the peak season so we had little trouble with traffic or even finding a parking space.  Other friends noted that they’ve had problems with that during the summer months. We met the first designated parking lot quite far from the actual aquarium, though there are many attractions along the way, and a tram-car you can hire for 200yen/day.  If you’re going during non-peak seasons, just drive up to the closest parking lot!

The whole complex is cunningly designed for the efficient flow of attendees. From the entry there are wide walkways, pavilions,  stairs, fountains, and play areas that allow people to move at their own pace without blocking others’ way.  Once you make it past various information booths, restaurants, and flowering sea life you’ll find escalators that will take you down to the entrance of the aquarium itself.

The fees can change but entry is usually about 1800 yen for adults, though a year’s pass is 3600.  If you plan on going more than once, it makes sense to get a passport.  Through the gates you’re immediately immersed in the oceanic experience at a tank of touchable sea life.  Throughout you’ll walk past multiple tanks of various sizes grouped by sea depth before finding yourself at the vaulting main tank.  Here, crowd control truly comes together as there are seats, switchback ramps and a wide area on the floor to give everyone time to stop, watch, and take pictures.

There is also a large shark exhibit you can checkout before heading down to the main floor.  In addition to many specimens and interactive learning guides, there is a large tank of various sharks including lemon and tiger sharks.  Outside the shark lab the path leads down to the main tank where you can watch the whale sharks, rays, fish, and other animals swirl through the waters.

Once you’re ready to move on, there are a few other exhibits including life near the bottom of the sea.  There is also a cafe with seating around the bottom of the main tank for those that have a bit of extra time.

Finally, the path ends at an extravagant gift shop with everything from individually packaged snacks (great for omiyage) to plushes and clothes.  Unfortunately we were limited by time so we kept our visit to the aquarium, and finished within about 2 hours.  There is easily plenty to fill a day or more, but you can customize your trip to your schedule.  If you visit Okinawa, be sure to check out Churaumi!

Deep-Sea Water Uses

As promised, this is a follow-up to the post earlier this week on International Cooperation in Green Energy.  Today I’ll share a few of the many uses of the mineral rich Deep-Sea water  used on Kume Island and also a byproduct of some green OTEC power generators.  The cold water at the bottom of the ocean is rich in nutrients and minerals, but since it is far from photosynthesizing phytoplankton (plant plankton) is limited in oxygen.  When that cold water is brought to the surface and oxygenated, it can be used in numerous applications.

Sea Life

As you might imagine, the water can support a wealth of sea-life.  Unlike normal sea water, the extra nutrient content provides unique opportunities for increasing the size and quality of a variety of natural organisms.  From the clams pictured above, to shrimp and other delicacies, the deep-sea water can be harnessed to promote important food sources.

Shrimp Farming

Shrimp are an oceanic food loved throughout the world, but pose unique challenges in the wild.  Shrimp tend to tunnel into sand, making them difficult to catch in a sustainable way.  In addition, wild shrimp can be prone to viruses and other dangers that affect their availability.  Kumejima utilizes the nutrient rich deep-sea water to hatch eggs and develop the microscopic shrimp until they are large enough to transport to other larger shrimp farms.  The high quality water helps provide more food for the small shrimp to feed on, promoting their growth and quality.

Sea grapes

Umi Budo, literally translated as sea grapes are a type of seaweed popular in Okinawa.  Small round nodules dot the long strings of sea plant that give them their other name, the caviar of the sea.  These tasty treats are popular as appetizers and are very tasty.  While they are a plant native to Okinawan waters, using deep-sea water to grow the plants ensures more and more tightly spaced nodules, making them a higher quality.

 

Water

In addition to being highly mineralized, deep-sea water is very clean.  This makes it suitable for desalinization as a drinking or irrigation source.  In Japan, though, bathing is such an important part of the culture that people have found a use for it there as well.  Just as natural hot springs are prized for their mineral rich waters, so too has Kume Island developed the Bade Haus spa complex to utilize deep-sea water.  The bath house has a large heated pool with massaging jets as well as sauna, jacuzzi, and other features that allow the body to relax and absorb the properties of the water.

Farming

Since the water from the deep-sea is cold, it can also be used in farming applications.  Tropical areas in particular have high temperatures that can make winter vegetables difficult to grow out of season.  Using cold deep-sea water to cool soil by running pipes can allow for longer or even multiple growing seasons for some plants.  After cooling fields, the water can then progress to other non-temperature related uses, making it an efficient and clean tool.

Cosmetics and Health

The mineral rich waters can also be distilled for unique cosmetic and health applications.  Point Pyur is a local company that utilizes the deep-sea water in everything from shampoos to mineral gels.

Marine Day 2012

July 16 2012 is umi-no-hi or Ocean Day in Japan.  It is a public holiday that is uniquely significant given that Japan is an island nation.  Although the holiday has a somewhat erroneous history, in modern times it marks a day for the people of Japan to think about the wealth of the sea and its importance to Japan culturally and economically, while also giving thanks for the ocean’s harvests.

Many municipalities celebrate with ocean related activities.  Northern Okinawa hosts many events and the beaches are full of family and friends.  On Kume Island, there will be a large fishing competition.  With a three-day weekend, a lot of families are trekking out to the many local beaches for barbecue, fireworks, and good times with friends.

In celebration of the day, here’s a selection of ocean photos from around Japan.

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