@David Matos Mendes Sorocaba zoo or São Paulo zoo would be the best places to see these. São Paulo zoo have a colony of them beside the giraffe enclosure in quite a good enclosure.
Although I do not like the design of this exhibit, I can at least explain the reason for it. Originally (before event the first meerkat exhibit on right) this was a kids splash park called Kenya Get Wet. The wall on the left is all that remains, which was at the edge of the play area to look into the otter exhibit. The painted theme that went throughout was meant to be colorful for kids. When they replaced it with the first and then the second meerkat exhibit they kept the paint scheme to match the existing wall on the left. Of course in my opinion they should just paint everything tan. (Even then I am not happy with the walls, but it would at least be an improvement).
@Onychorhynchus coronatus Ah, yes, thank you! I've heard about this enclosure near the giraffes... I also heard they reproduced a few months ago, but I had completely forgot about them. Good you remembered me; hopefully gonna see them later this month. I might see them in São Paulo aquarium too, I just read that they also have a colony in there.