Punalu'u Black Sand Beach is a beach near Naalehu, Hawaii on the Big Island of Hawaii that has black sand created by volcanic activity. The volcanic activity is now in Hawaii Volcanoes National Park. Taking black sand is prohibited, but local tradition says that if any of the black sand from Punalu'u beach is taken away from Hawaii that the person that took it will be cursed until it is returned. The same is said about the local volcanic rocks.

Geography of Hawaii | Geography of Hawaii