Monkey Buisness: Jungle Trekking to a Monkey-Infested Beach

I had met a Japanese man and an Italian woman in my hostel. They had expressed an interest in going to a place called 'Monkey Beach'. And I asked to come along. From the name alone, this beach sounds like the setting of a movie. Plus, adding to the mystique was the fact that rumor indicated that the beach was actually not just named monkey beach, but was under the strict governance of monkeys.