I'd give the museum itself four stars -- it's beautiful, informative, and interesting. (Four rather than five since it barely mentions the fascinating biology of trees.) I don't think it's worth $9, though, which pushes the overall rating to three stars.
- Ponytail Falls and Triple Falls Loop Hike
- Sauvie Island - Wapato Greenway State Park
- Waterfront Bike Path to Springwater Corridor Path