"Sea Turtles and Black Sand Punaluu Beach attracts visitors and locals to its black sandy volcanic shore. The beach is out of the way (between Volcanoes National Park and South Point), but worth a stop. Punaluu is not overly crowded, but the green sea turtles and uncommon black sand attract a number of tourists off the Mamalahoa Highway. Tables and restrooms are available, making this a fantastic spot to take a picnic for an afternoon."
9 Big Island Destinations Worth the Drive
Photo by Brocken Inaglory/Wikipedia