Just remember: Going on the roller-coaster won't impress her. It'll be unimpressive if you don't get on, however.
"Cedar Point’s classic wooden roller coaster – and for many still the favorite – the Blue Streak flashed onto the scene in 1964, treating riders to the old-school thrills of gravity-driven speed and unexpected airtime on a traditional “out and back” track layout offering great, if brief, views of other major park attractions."
That's a very smooth roller coaster, especially for a wooden one.