If you, like me, are lovers of interacting with animals, be very careful with monkeys: do not touch (obviously), do not feed, do not sit on the sand nearby. I just sat down on the sand for a photo and was attacked from behind by two monkeys. I was lucky: my insurance included monkey bites. But it's not pleasant enough: courses of vaccines against rabies, tetanus, antibiotics, antiviral.
Be careful & take care!