Also known as Black Sand Beach and Naupaka Beach, One'uli Beach (view panorama) is a hidden little gem. It lies just to the north of Pu'u Ola'i, a 360-foot-tall volcanic cinder cone with gorgeous red cliffs topped with green vegetation. If you look closely, One'uli's beach sand actually has three colors – black, white and red.
One'uli Beach doesn't see as many visitors as the other beaches in this area, such as neighboring Big Beach. One reason is that One'uli can't be seen from the road. Also, the swimming conditions aren't good here. There's a lava shelf on the nearshore ocean bottom. But the beach is a nice place for a picnic with scenic views.
One'uli Beach Overview
Hidden beach with black, red and white sand
Marginal swimming conditions because of lava shelf
Kayakers launch from here
Next to Pu'u Ola'i, a 360-foot cinder cone also known as Earthquake Hill or Red Hill