While I realize this may be difficult due to the yearly flooding, I think the bike paths (at least in certain spots) could be spruced up. They traverse some areas with vegetation that's beautiful in the summer, but so few people use them! We could add information stops that talk about certain plants, animals, or even man-made structures, just like they do in national and state parks. Maybe place some statues or fountains or other cute decorations along the path. We could place picnic tables at locations that offer a scenic view, and place trashcans next to them, and hire someone to patrol the paths on bicycle. We could also offer trail maps that show people where the info stops are, as well as show the neighboring parks and their amenities. Make it more of a destination so that people actually use it, and change that mentality of "only hobos go down by the river."