Pu'u o Mahuka Heiau is the largest heiau (religious site or temple) on O'ahu, covering almost 2 acres. The name is translated as "hill of escape." Undoubtedly, this heiau played an important role in the social, political, and religious system of Waimea Valley, which was a major occupation center of O'ahu in the pre-contact period.
Situated on a ridge with a commanding view of Waimea Valley and the northern shoreline of O'ahu, this heiau had ties with the heiau at Wailua on Kaua'i. It is reported that signal fires at these heiau provided a visual communication between the islands.
Pu'u o Mahuka Heiau was declared a National Historic Landmark in 1962 in recognition of its importance to Hawaiian culture and history. Also in 1962, the 4-acre property encompassing the heiau was placed under the jurisdiction of State Parks to preserve this significant site for future generations.
The park is open during daylight hours. Please observe the site from outside the walls; the cache is NOT located in or near them.