Beautiful, quiet, riverfront playground and boardwalk. If you get there at the right time (1:45pm being one of them) you'll get to see a train go across the bridge slowly! It's nice and shady in the heat of summer and the cool air circulating from the waterfront makes this area especially good when the heat is overwhelming. The downside is that there are sometimes unsavory types of people (ie addicts) that hang out/sleep at the nearby picnic tables and benches, which I realize can be off-putting when you are there by yourself with young children. To be clear, I have never been bothered by this, or by the people themselves, but I can see how it might bother others, so it's important to note.

There is a marina just beyond the railroad bridge where riverboat tours are given (highly recommend doing one of these tours) and other boats are docked. You can walk out onto the dock to get a closer look at the Savannah River.