This is an obvious example of a dry moat as it is quite visible to the public, but many of the St. Louis Zoo's hoofstock paddocks are similar to the Miami Metrozoo's moated enclosures. Both zoos offer many large enclosures with unobstructed views of the animals.
What a wonderful enclosure for a wonderful species! Lesser Kudu are among the most beautiful species of antelope, in my opinion. Really all of the members of the genus Tragelaphus are beautiful though.