Batuputih Beach, Tangkoko Nature Reserve

Inside the Tangkoko Nature Reserve, they have a beach area named oddly Batuputih, which means white stone. But the sand there, or at least the ground beneath are surprisingly black. The view from the beach was amazing, especially when the sun glistens and shines through the nearby landscape, and although it's not necessarily good for swimming, it's nice to splash around there because there were no reefs around.