If you are into canoeing or kayaking; Juniper Springs is the very best.
There is a National Forest Camp Ground there, but I don't know if you can fit a motor home in the sites
The spring run is like being in The Garden of Eden and there is also swimming at the head spring.
I have canoed and kayaked in every spring run in Florida and I like the wilderness Juniper Springs the best
Alexander Springs is another that is similar.
The Silver River used to be awesome, for it's entire length, but now the state has ruined half of it, and after the first several miles it is no longer clear.
The Silver Springs State Park is closed to camping right now
There is a very nice private RV park with full hookups, (Wilderness RV Resort) close to the above that is right on the Withlacoochee River near where the Silver River Enters it
Jack L
Jack & Nanci