A big park with a frisbee golf course, nice walking paths, dog park, and huge trees.
A pretty famous waterfall along the gorge. The falls have their own parking lot and very short trail to hike up closer to the falls.
A historical mansion from 1914 with views of the city and surrounding area. Tours available, access to Forrest Park trails, or just enjoy the view from the grounds.
Easy hiking trails with Portland, trail heads accessible from multiple areas.
A multiple-story local bookstore in the center of downtown.
Access to Haystack Rock and tide pools, this beach is about a hour and half from the city.