Sara Beth Wade
Google
I visited three natural springs in the area and Wekiwa Springs was my least favorite. I liked Rock Springs/Kelly Park nearby the best, but here you can actually properly swim, which you can't do there. The biggest tip here is to GET A RESERVATION online beforehand, *several* days beforehand if you want to visit on a weekend! I recommend doing both parks, go to Kelly Park when it opens, then come here after with your reservation, which is good all day.
The vibe here is more like a public pool. It's basically a swimming hole, just with cool, clear water and some rocks you can perch on. Most folks arrange themselves around the edges and while it's pretty deep, an adult can still touch in most places. Folks bring everything from pool floats to stand up paddleboards here. There is a nice boardwalk trail that you can pretty much walk barefoot just behind the pool. There are also bathrooms, a gift shop, and a snack stand. The good thing is that with a reservation system, the parking lot and pool don't ever get too crowded.
Rock Springs is where this water originates, and Wekiwa is basically where it ends, and in between is the "rock springs run" which you can rent kayaks or canoes for. There's a rental dock here and I think another put in close to Kelly Park, but I don't think you can kayak the entire thing, I'm not sure.