You could always just give her a pearl necklace.
That being said, you could go for a weekend up in Golden.
There is a great restaraunt at the top of the ski hill that you have to take the Gondola to. (I bet you could hike it in the summer).
The view from the restaraunt is fantastic, and it is a very good restaraunt (It's got a whole bunch of stars...or rosets...or whatever else the could get), and it's all Canadian ingredients:
When I went I had bacon wrapped rabbit medalions, mountain goat consume, and a caribou steak.
You can stay cheap, there's lots of good hiking, rafting, whatever in Golden, the restaraunt is incredible, and if you take the Gondola back down after dinner (assuming it's dark) you could give her that pearl neckalce then.
http://www.kickinghorseresort.com/activities/eagleseye/