If you are considering Vortex Springs, then by all means check out Morrison Springs. Only about a dozen miles away, just south of the interstate, and free. Nice facility. Sometimes they all get bad viz with a lot of rain, though. I like it much better than Vortex, but they are close enough to do both. No air or anything at Morrison, just a nice spring and park. Restrooms, covered picnic pavilion, boardwalk, etc.