After exploring the area around the Space Needle, we went to the Aquarium. Being a volunteer at the Georgia Aquarium, I really like to explore the other aquariums when we travel. The Seattle Aquarium is considerably smaller than ours, but that doesn't make it less interesting. I loved watching the interaction with the harbor seals. Their octopus was easier to locate, though the exhibit was less interesting.
Not bad for a small aquarium.