Piilanihale Heiau temple

Built over 300+ years beginning in the 13th century. Completed in major phase by Chief Pi'ilani in the 1500s. Active religious use ended 1819. Designated National Historic Landmark 1964. Restored 1998-1999.

The construction of Pi'ilanihale Heiau began around the 13th century, though some sources place the origin in the 14th. What is certain is that the temple was not a single generation's work but a collective project spanning centuries. The NTBG estimates 120,000 man-days of labor went into the construction, with basalt stones carried from as far as Hana Bay. Some individuals devoted their entire lives to this building. The heiau grew over time, each generation adding to what their ancestors had begun.

The name commemorates Pi'ilani, the great moi who ruled Maui in the 1500s. Before Pi'ilani, Maui was divided among competing chiefs. He achieved what none before him had: the unification of the entire island under one rule. An era of peace followed. Pi'ilani is remembered not only for conquest but for construction. He built the Alaloa, the King's Highway that encircled Maui. And he completed a major phase of this heiau's construction, though traditions differ on whether he finished the work or his sons completed it after his death.

The heiau functioned as a sacred center of Hawaiian religious life until 1819, when King Kamehameha II abolished the kapu system. The traditional religion ended, but the temple did not disappear. The jungle grew over it. The Kahanu family maintained connection to the land. In 1964, the site received designation as a National Historic Landmark. In 1974, the Kahanu/Uaiwa/Matsuda/Kumaewa family donated sixty-one acres including the heiau to the National Tropical Botanical Garden, with specific requirements for restoration and respectful public access.

The restoration project of 1998-1999 brought archaeologists from the Bishop Museum and the State of Hawaii Historic Preservation Division to restack terrace walls that had collapsed over centuries. Traditional methods guided the work. On April 10, 1999, a community celebration marked completion, conducted with traditional protocols including the chanting of Pi'ilani's genealogy. The heiau had returned to visibility, though its sanctity had never faded.