Check out North Sylamore Creek. I don't think that it qualifies as being "in" the Ozarks, but it is at one of the trailheads for the Ozark Highlands Trail. The hiking trail is really beautiful and has lots of different sights. There is also a cavern nearby called Blanchard that is worth a visit.
Last time I hiked on that trail we arrived at the Blanchard Springs area there was a huge Cub Scout campout below the huge rock face. There were hundreds of them. As we walked through their gathering a lot of them offered us breakfast and that was a really cool experience.
