When I drove through the gorge yesterday I saw a large ship docked in The Dalles. It looked like a "tiny" cruise ship. All I could read   on it  as I passed it was National Geographic.  I looked it up today and found this link. People are paying thousands of dollars to see what we have in our backyard. I had no idea.

http://www.nationalgeographicexpeditions.com/expeditions/columbia-snake-river-cruise/detail