Skip to main content
Mr Hilo

History

Puʻukoholā Heiau: The Temple That Helped Unify Hawaii

What Puʻukoholā Heiau is, the prophecy that led Kamehameha to build it around 1790, how it connects to unification, and how to visit the historic site.

Updated September 13, 2026
Share this guide

Puʻukoholā Heiau is a massive stone temple on the Big Island, built by Kamehameha I around 1790 to 1791. It stands at the center of a pivotal story in Hawaiian history: the prophecy and campaign that led Kamehameha to unify the islands into a single kingdom. Today it is preserved as a National Historic Site.

What Puʻukoholā Heiau is

A heiau is a Hawaiian temple, a sacred place of worship built under the kapu system. Puʻukoholā, whose name refers to the "hill of the whale," is one of the largest restored heiau in Hawaii. Its scale reflects both the labor that built it and the significance Kamehameha placed on it.

The prophecy and unification

According to tradition, a kahuna (priest) prophesied that if Kamehameha built a great heiau dedicated to his war god at Puʻukoholā, he would succeed in conquering and uniting the islands. Kamehameha undertook the enormous project, and within a few years he had unified most of Hawaii, founding the Kingdom of Hawaii. The temple is inseparable from that turning point.

How it was built

The heiau was constructed from water-worn stones passed hand to hand along a human chain over a long distance, without mortar. The effort required the coordinated work of many people, a testament to Kamehameha's authority and the importance of the undertaking. It remains a powerful sight on the Kohala coast.

Visiting the site

Puʻukoholā Heiau National Historic Site is managed by the National Park Service, with a visitor center and views of the temple from designated areas. Because it is sacred, visitors follow cultural protocols and stay outside the heiau itself. Learn more from the NPS at nps.gov/puhe, and see our Big Island guide to plan around it. Treating it as the sacred site it is honors its history.

Frequently Asked Questions

What is Puʻukoholā Heiau?
Puʻukoholā Heiau is a large temple (heiau) on the Big Island, built by Kamehameha I around 1790 to 1791. It is closely tied to his campaign to unify the Hawaiian Islands and is preserved today as Puʻukoholā Heiau National Historic Site.
Why did Kamehameha build Puʻukoholā Heiau?
A prophecy held that if Kamehameha built a great heiau to his war god at this site, he would succeed in unifying the islands. He built it, and within years he did unite most of Hawaii into a single kingdom.
Can you visit Puʻukoholā Heiau?
Yes. It is a National Historic Site managed by the National Park Service on the Big Island. Visitors can view the massive stone temple from designated areas and learn its history. Check the NPS for current access and any cultural protocols.

Found this helpful? Pass it on.

Share this guide

We research each guide against primary sources: the Hawaii Tourism Authority and Mālama Hawaii, the National Park Service, the State of Hawaii and its Division of State Parks, the National Weather Service, and the U.S. Census. For culture, language, and history we lean on the Office of Hawaiian Affairs, the Bishop Museum, and the scholarship of Mary Kawena Pukui. We send readers to those sources rather than speaking over them. When rules, prices, or conditions change, we update the page.