It's the furthest paddock on the right on the pathway that's the other side of the railway line from the ape house/sea lion pool area. Opposite the spoonbill/crane aviary. And gee whizz have they made a mess of it!
Looking back at this picture since it's been revamped it looks nothing like it! There's only four RRH's now and unfortunately there not able to view on foot. I've attached a photo of the grass in the now Kune kune pig paddock now-