Giraffe paddock

This large pasture certainly looks nice with all the grass, but I wonder how the giraffes feel about the slope down to the wall? Would the animals frequently go up and down the gentle hill or mainly stay up on flat land?

By contrast, London Zoo's giraffe yard appears to be very barren, with hardly a blade of grass anywhere, but it is incredibly flat.

@snowleopard Although I didn't personally see the giraffes in the paddock on my visit, they preferred to stick to the hard standing, @littleRedPanda managed to get a photo of them after they've come to the bottom of the paddock;