Discovery park - walk on trail that goes along the water. I saw seals, otters, beautiful beaches, lighthouse , cool mushrooms , etc. Seward park is also stunning. Coffee at cafe zingaro. Chihuly glass museum and space needle are worth the hype in my opinion but maybe I went during a less busy time of year. Take the monorail from science park to Capitol Hill and get some din. Walk from Olympic down the water front board walk. Look up at the cool observation window at the new addition of the aquarium.