I love the Seattle Aquarium, especially the huge octopus they have there.
It's a bit pricey to get in...around $15 a person...but it's real fun and very enjoyable.
You can see so many forms of aquatic life and they even have a family of beavers that live there that you can watch.
As always, you exit through the gift shop, but their souvenirs are overpriced and generic. Go down the street to Ye Olde Curiosity Shop to buy keychains and stuff for $4 instead of $15 at the Aquarium Gift Shop.
Nice place to spend a day. Plan on either parking many miles away and walking because there is no parking there. You may, may may be able to get a spot under the Viaduct if the gods are smiling upon you. CHances are, though, you won't. Just deal with it and park about a mile down towards Pioneer Square. The distance isn't that far and the walk is pleasant. Take the time to enjoy the waterfront and the colorful cast of characters who spend time there. Get your picture taken in front of Ivars, and step gently over the homeless folks that sleep along the rails.
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