Having just looked at the website, that looks to be the "Stone Circle Experience".
It appears to cost just under £60.
Weirdly, compared to paying over £20 to stand somewhere vaguely near the stones with a bunch of tourists and peer at them in the distance, that sounds like quite good value.
If you're daughter's into history, it'd be quicker and cheaper for her to just join NSC.
I'm pretty sure there are some people on here who'll remember Stonehenge going up.