I am driving from San Franciso south on Hwy 1 all the way down, with a nervous driver. I think Ive read that the "scarier" part of the drive is in the Big Sur area. But I haven't been able to find anything on just how long the particularly nerve-wracking part is. Is this just a 15 minute stretch or the whole way? We don't want to bypass it (the whole point is the beautiful drive) but I was hoping to know when and for how long I should expect white knuckles. :) Thanks!