Tangkoko Nature Reserve, North Sulawesi, is a flora and fauna conservation area, particularly attractive for its unique wildlife. It's located in the province of North Sulawesi, about one hour’s drive from Manado. The nocturnal and the smallest primates in the world, Tarsius spectrum – only about a fist size – who make Tangkoko their last refuge and are found only in Sulawesi. You also can see the macaca nigra, endemic to Sulawesi, playing, fighting or grooming themselves. They usually come in large social groups.