Shimonoseki Kaikyokan is the big, new aquarium located right on the seafront in Shimonoseki, Yamaguchi Prefecture.
It was designed by the Nikken Sekkei Company who also designed our local aquarium,
Aquas.
Whereas the design of Aquas was based on the shark form, Kaikyokan is supposedly based on the whale form.
The entrance foyer has a huge whale skeleton on display. (Nearby at the
fish market you can by whale steaks)
Many of Japan's whaling fleet are based in Shimonoseki. Ooops... I mean of course Japan's "research" fleet.
By all accounts the aquarium has good displays, but at 1,800yen for entrance, the short time I had as I passed through Shimonoseki meant I didn't go in.
They do have a big display of Fugu.