For as well as this park is maintained it sure is in the middle of nowhere. Luckily I was hurrying down from Madison Blue Springs (to grab some pictures before the afternoon rains hit) so it was sort of on the way, but it's quite a trek for anyone living east of I-75. I'm pretty sure it's worth it.
The spring is actually a system of karst windows that navigate across the landscape from the south-west of the parking lot toward the Suwannee. The head "spring" emerges from the ground in a dark window (meaning you can't see into the cave very well - the limestone blocks most of the light). The water is visually separated into two pools, the first of which flows under a limestone bridge and into the other. I observed a turtle in the main pool and attempted to swim under the bridge but the low visibility made it too risky.
The second pool gets very shallow as it approaches the Suwannee River, which makes for some pretty nice wading and relaxing. The beach surrounding the mouth of the run is very wide and good for walking. There's also a set of stairs to the south of the beach that leads back into the park.
I almost left the park without finding the rest of the "hidden" karst windows. After rounding back from taking a couple final pictures, I noticed a trail into the woods just south of the bathroom. It's not cut very well and I was only wearing my flip-flops (mistake), but I crashed ahead and found two large karst windows and what looks like a sink (check the pictures below). I doubt it's a good idea to go into these formations but they were much more picturesque than the main spring.
Overall I really enjoyed the park. It had a nice variety of open springs and wooded karst windows, nice bathroom and changing facilities, and a very clean parking lot. Recommended.