‘Īao Valley is at the end of winding ‘Īao Valley Rd. In this densely forested cul-de-sac, whose walls are almost a mile high, Kamehameha I trapped and destroyed the defending army of the Maui king. A sign and changing profile indicate rock formations in the shape of past dignitaries. The valley is within West Maui Forest Reserve, which encompasses most of the island’s western peninsula.
Bring mosquito repellent. Restrooms are available; drinking water is not. Note: The monument will be closed periodically in 2017 to repair damage caused by flooding in late 2016; phone for updates.