Oh the places you will see....

.... when you don't know where you are going and you've just told your friend "don't worry, the route can't get narrower than it already is."

PS - I'm adding in a photo of our second option that my friend emailed to me this morning. (She was on the good side of the car for this photo). It was a pretty hill, but in the end, we decided to turn around given lack of Wellie boots and 4-wheel drive.