Hawaii Preparatory Academy 65-1692 Kohala Mountain Road * Kamuela, HI 96743-8476 * 808-885-7321 Aloha! Hawaii Preparatory Academy (HPA) is an independent, coeducational, college preparatory school for day students in grades K-12 and for boarding students in grades 6-12. The school is located in Kamuela on the Big Island of Hawaii, 30 minutes by plane from Honolulu. HPA is fully accredited in ...