Enjoy the view at Skytree and then enjoy the world of the sea at Solamachi.
The aquarium was quite small but did have some interesting things to see, most notable were the Jellyfish and Sharks. The highlight for me, however, was the aptly named Animals Enjoying Water section. This was home to Fur Seals and loads of Penguins. They seemed to be enjoying the water. A very good aquarium, and a nice place to visit whilst waiting to see Tokyo Skytree.