There are hot thermal springs around Mataranka. We visited one. Tried another and went back to the first. It was surrounded by bats (more bats than I could have imagined). But we managed to avoid bat poo and had a lovely time in hot thermal springs baths. Cathie and I sat at one end and talked for ages in the warm water while the kids apparently developed a dangerous routine.
They started to perform it for us - but we had to stop it when we saw how dangerous their diving into the shallow springs was.