Do not miss this place if you're on the highway between Darwin and Alice Springs. Very relaxing, beautiful and pleasant place with the sounds of nature. Come before noon to have the pool to yourself.
Note: as there is current in the springs you enter at one spot and exit at another. I did leave all my valuables, such as passport and cash at the entrance - nothing happened to it. But, perhaps, you'd want to leave your stuff (except for shoes) in your car.