You can see the barrier type in this part of the exhibit (front line of the enclosure), a water moat edged with big-sized stones from the visitor's pathway (in the second picture you can see the electric wire on the stones as well).
At the other part of the exhibit: a not too deep dry moat edged with the same stones:
I'm really liking this. The barriers do there job in protecting the public and keeping the animals contained and provide an excellent way to see the animals. It shows the degree of trust this zoo has in its visitors and the wonderful experiences that can be created through this trust.
