Planned our day to arrive around 8 AM knowing the visitors center not open till 9 (bathrooms were open and brochures available). Did the boardwalk loop first. This is a very easy and worthwhile hike especially if you take the brochure and read the info at each marker. Then we hit the visitor center, got some good tips from the staff on other hikes, and then caught the movie. The movie is one of the best we have seen at a national park (and we have been to most of them). Very informative and very well done! Then we opted to do the river hike. It's long, flat, and quite frankly, very boring. What was disappointing was you didn't get to actually walk along the river. Just a glimpse here and there. This was a downer as we expected we would be able to walk along the river for a stretch. In addition, trail maintenance is not a priority here and we spent a lot of time climbing over down trees (which we were previously warned would be occurring). It took us about 4.5 hours to navigate this hike and not sure I would have done it knowing what I do now. Not a very popular hike probably due to its length as we only saw 7 other folks scattered on the trial.