Location at Kamehameha Avenue, Hilo.
Black sand beach, water is murky and swimming conditions are poor. Hammerhead sharks are common in the bay. A nice place for a picnic and a popular surfing, fishing, kayaking, sailing and canoeing beach. Nice place for watch sunset. Parking, picnic tables, showers, restrooms on the shore. No lifeguard.

From Kailua-Kona, take Highway 11 south. At Captain Cook (near Kealakekua Bay), turn right onto State Highway 160 (Napo'opo'o Road) and follow it to the end.
Napo'opo'o Beach Park located at the southern end of Kealakekua Bay. This is where Captain James Cook first set foot on the Big Island of Hawaii on January 17, 1779. The Hiki'au Heiau (ancient Hawaiian temple site) here, a temple dedicated to Lono, the god of agriculture and fertility of the land. Shoreline is rocky, good for snorkeling, scuba diving and kayaking. Facilities: showers, restrooms, picnic tables, pavilion, BBQ grills, parking. No lifeguards.

From Kona, drive north on Highway 19. Before mile marker 70, make a left turn on Puako Road and then turn left at the next road. Park near telephone poll 71. The trail to the left leads to the beach.
Waialea Bay Beach is one of the few beautiful white-sand beaches on the Big Island. Ocean bottom drops off gradually, good for swimming, snorkeling, scuba diving, surfing and kayaking. Facilities: Showers, Restrooms, No lifeguards.