I believe that there are only 2 male lions, as there is a review on one of the ZooChat threads. The fence is extremely high, and I wonder what other viewing opportunities there are. Hopefully there is some kind of platform overlook or glass window.
I just saw these comments, sory I had not looked earlier.
The side the lions are facing is the viewing area. there is a small fence to keep people off the main fence but you get a good look at them fron there. I took this photo across a Walaby enclosure.