At the Apes' Den (Queen's Gate) and in the area of the Great Siege Tunnels there is the rare opportunity to see semi-wild primates at close quarters. If you let them, the monkeys will be their captivating selves and behave in their everyday natural manner.

The Apes are a species of tailless monkeys called Barbary Macaques. These Macaques can be found in Morocco and Algeria, with those in Gibraltar being the only free-living monkeys in Europe today.