Kaunaʻoa Bay has one of the few white sand beaches of the Kohala Coast, the western side of the island of Hawaiʻi. A historic hotel, the Mauna Kea Beach Hotel, is located on beautiful Kauna'oa. The word kaunaʻoa may refer to a few different things, any of which may have been why native Hawaiians named this beach so: the first definition refers to a thin, or…Kaunaʻoa Bay has one of the few white sand beaches of the Kohala Coast, the western side of the island of Hawaiʻi. A historic hotel, the Mauna Kea Beach Hotel, is located on beautiful Kauna'oa. The word kaunaʻoa may refer to a few different things, any of which may have been why native Hawaiians named this beach so: the first definition refers to a thin, orange vine with yellow flowers, which is found throughout most of Hawaiʻi. However, the second definition refers to a mollusk, and a third definition refers to a tough seaweed.