Is there a hot spring?

There are several thermally active areas. Sulphur works by the side of the road for quick stops, Bumpass Hell for a nice hike, and Devil's Kitchen for a longer hike on the other side of the park. But these are all mud pots and fumaroles - very dangerous so you can't touch and must stay on the path.

Is there a hot spring that you can go into?

I agree, do with Jim. I would do both. Enjoy.

I mean, not one you can dip into.