Always nice to find a big index contour to follow ;)
Those *are* the best handrails.
I remember after my first o' race -- I ran orange -- the guys that brought me asked me how I had done one leg. I said I followed a contour ... they laughed, saying you know you can't see those on the ground, while thinking, wow, she *GETS IT.* They mentioned the WOC-after-next was Australia & I should go for it.