Here is one of the shots I managed to get during my visit. It's pretty difficult to get a clear shot, as I'm shooting through glass which is in front of fencing. The glass made nearly all my shots hazy and a pain to focus through. And the reflection from the glasss was absolutely terrible. Plus I had to deal with the crowds.
The cubs in this shot were next to a log put in the exhibit. They seemed to enjoy chewing the edges of the log.