A new exhibit under construction, without any labelling for what it will contain.
It has a glass front barrier and a pool (the rock structure), and also logs. There is a ramp at the left (not visible in this photo) which appears to be visitor access into the enclosure.
This paddock previously held spare male Nyala (currently in the paddock to the left of the photo), which is why there is a shelter and hay-feeder-thing further up the slope. If you make the photo larger you might be able to see a Nyala in the far background next to one of the fence poles.