American Fork and Provo Canyons are rather beautiful, and the road connecting both of them is a fun drive to make. The road is narrow but the views are amazing. At the top of the road is a turnoff that 15 minutes later will drop you at Cascade Springs, a fun, developed park that has bridges and walkways around some naturally occurring springs.
I found myself getting restless at home with the kids and decided it was time for a drive, so I loaded them up with a friend and went on a little adventure. We got there in the early evening with plenty of light and basically had the whole place to ourselves.