I thought the Seattle Aquarium was hit and miss. I think it was $19 per adult and it did not take that long to walk through. The octopus was very cool, a 2-3 foot puffer, a mammoth rock cod tank with a scuba diver answering questions via microphone and a specific saltwater reef tank in the back had some amazing color (proper lighting on it). I have not been to Oregon Aquarium in a while, but I remember it was much bigger and better than Seattle.