A heiau (/ˈheɪ.aʊ/) is a Hawaiian temple. Made in different architectural styles depending upon their purpose and location, they range from simple earth terraces, to elaborately constructed stone platforms. There are heiau to treat the sick (heiau hōʻola), offer first fruits, offer first catch, start rain, stop rain, increase the population, ensure the health of the nation, achieve success in distant voyaging, reach peace, and achieve success in war (luakini).
Only the luakini was dedicated through human sacrifice.[1] There are two types of luakini. They were called the ʻohiʻa ko and hakuʻohiʻa.[2]
After the official end of Hawaiian religion in 1819 and with later pressure from Christian missionaries (who first arrived in 1820), many were deliberately destroyed, while others were left into disrepair. Heiau are still considered sacred by many of the inhabitants of Hawaii, and some are not open to the public. In ancient times, only chiefs and priests were allowed into some of these heiau. There are even stories from Hawaiian folklore attributing the creation of these temples to the menehunes, a group of legendary dwarf people.[3] Some heiau structures have been fully restored physically and are operated in the 21st century as public attractions.