You are guaranteed monkeys here: Vervets are all over the place and you'll probably also see Red Colobus swinging through the trees. A variety of birds, some of which have learned to pose for photos, are around.

You'll be faced with the moral dilemma of whether to feed the monkeys: the signs at the entrance, where the peanut sellers stand, say "Don't feed the monkeys" but everyone does and the monkeys will soon lose interest in you if you don't.