Crescent-shaped Kaunaʻoa Bay (nicknamed 'Mauna Kea Beach' after Rockefeller built his landmark hotel on it) is blanketed in powdery white sand, while the clear waters are calm and shallow (generally less than 10ft). Snorkeling is best at the north end along the rocky ledge. This wonderfully uncrowded beach is open to the public through 40 parking spaces set aside daily for nonguests. Arrive by 9am and stop at the entry gate for a parking pass and directions.