While not as big as the one in Okinawa, it's still an amazing aquarium. Shot on the 7D, I thought I was going to have a rough time shooting through the acrylic glass since it was so thick but it was actually easier than I thought. I'd love to actually get into the tank to do some underwater shooting.

Osaka Aquarium ?????? on Vimeo

I really, really like the crocodile shots around 1:40 or so. Looks amazing.