This is a very interesting mixed exhibit amidst a lake at the zoo, that during my visit in 2008 housed:
Tayras (Eira barbara)
Tufted Capuchins (Cebus apella)
South American Coatis (Nasua nasua)
The keepers reach the island by means of a boat. It seemed to work pretty well with this combination of animals, and was very interesting to see how the animals interacted with each other, especially during feeding time. See also other pictures.
The coatis in this exhibit had a darker fur than that of other Nasua nasua, which made me think they might be a hybrid between Nasua nasua and Nasua narica (white-nosed Coatis).