So yeah, let me know if there's a few sites we really should see.

IIii had to think about this as I don't feel like much of a tourism expert. I tend to just drive folks around town until I wear them out!

Spending somne time downtown is certainly worthwhile. You can get from Pioneer Square up to Belltown (beyond the Pike Place Market tourist destination) in the free bus. The waterfront can be a great place to snag some lunch. Lots of fish.

My strong recommendations are few:

1) Cheap Thrill: take the Washington State ferry from Coleman Dock to either Winslow or Bremerton and have lunch. Bremerton has the Navy Yard and mothballed aircraft carrier and some folks like that, plus the trip through Rich Passage is pleasant (until you see and aircraft carrier coming the other way!)

2) Car trip: Take rental car on a decent day and drive one of 3 loops, either:
- Seattle --> I-90 East, Ellensburg, Yakima, lunch, then return through Chinook Pass (Mount Rainier National park) -> Seattle
- Seattle ->I-5 North, Edmonds, ferry to Kingston, up to Port Townsend, Port Angeles, then counterclockwise around Olympic National Park to Olympia, back to Seattle.
- Seattle -> I-90 East, Ellensburg, Wenatchee, north to Winthrop, then west through North Cascades National Park on state route 20, then south on I-5 back to Seattle.

The last two are a bit longer, but I think the North Cascades trip is the best (see the Columbia Gorge and right through North Cascades

Hope you have a car.