For tours that expose the fine points of the region's natural beauty, get on board a journey with EcoTours of Oregon. Check out specialized tours like the Mount Saint Helens Volcano Tour, a tour of the Northern Oregon Coast, a Whale Watching Tour, and the Columbia River Gorge Waterfalls. If you're not so much into the nature thing, enjoy tours like the Winery Tour of Oregon's countryside or the Portland Microbrewery Tour.
Go for a ride on the Portland Aerial Tram and see the city from a whole new perspective. You'll see everything from above, from the South Waterfront district to the Oregon Health & Science University campus. The ride averages about three minutes long.