Lie back on the grass and enjoy the lovely surroundings at Grant Park. After a long day of sightseeing, it's a wonderful place to take some time out.
When it comes to things to keep you busy in Portland, Grant Park is recommended by fellow travelers. And in good news for your budget, it's free to enter. Oregon Zoo, Portland Japanese Garden and Oregon Museum of Science and Industry will round out your day and are not far from the recreation and green space.