Rediscovering Kahanu Garden on Maui's Hana Coast
Derek Paiva, HAWAII MAGAZINE

Built on a lava ridge walled and filled in with stones, and covering more than three acres, Piilanihale Heiau is believed to be one of the largest heiau in the Islands.
I remember feeling a bit underwhelmed the first time I visited Kahanu Garden. Underwhelmed, that is, with much else other than the triumph of early Hawaiian engineering and construction that is its monumental centerpiece, Piilanihale Heiau.
Compared to the nonprofit Tropical Botanical Garden organization's three other Hawaii gardens—all on Kauai, and all brimming with acres of native and ornamental tropic flora— Kahanu Garden's huge 464-acre expanse on the scenic Hana Coast seemed, well, empty.