Going into our visit to Hot Springs NP in Arkansas we really were not sure what ... Thankfully we had a great time at Hot ...
Whether you're looking for fun things to do ... the Ouachita Mountains in Hot Springs, the Garvan Woodland Gardens site is the botanical garden of the University of Arkansas.
You'll need the car when exploring Hot Springs as public transit throughout the town, and Arkansas as a whole, is relatively scarce. That said, downtown (especially Bathhouse Row) is walkable.