The last time we were in Ashville with my wife's OOAK doll business, we too a group zip lining.
On the way there, we stopped to look at a property that was for sale on the other side of the valley (holler?)
To get there, we had to go up a relatively steep, but long and well maintained switchback.
We had 7 people in a rented Dodge Caravan.
The narrow gravel road was in good shape, so I was gong at a moderate clip.
But my wife kept looking out the side, down the severely steep embankment, and almost cried, so I had to slow down.
When we got to the zipline place (Navitat), they piled us onto a 4x4, stretch E 250 van, and sped off up the mountain WAY faster than I had been driving, spinning the tires at times, and teetering over some curves that had been shored up with spikes, wires and netting to keep the road from falling down the mountain.
...blasting bluegrass.
I couldn't help myself from laughing, in part because it was FUN and in part because my wife had no idea what she had stepped into.
My wife later thanked me for "easing her in" to that type of experience.