The mountains are beautiful, especially Mt Rainier, as are the San Juan Islands - many of which are uninhabited.
I can imagine the mountains are beautiful! Had to google the islands (kept thinking of San Juan in Puerto Rico) they look great, definitely worth a visit. Could be an ideal spot to do some more scuba diving.
The main thing that normally puts North America near the bottom of places to go is that a lot of the US and Canada are so similar to here, so when I spend time there I want to make sure I catch more of the differences than the similarities, both in culture and environment.
Hopefully I'll be a bit more er.. culturally sensitive than these Brits in the US:
http://www.youtube.com/v/2syY12OPkwI&rel=1