'Iao Valley State Monument

Quick Facts

'Iao Valley State Monument


(808) 587-0300

Map Directions

Things To Do



A paved 0.6 mile walk provides a scenic viewpoint of Kukaemoku ('Iao Needle), an erosional feature which abruptly rises 1200 feet from the valley floor. Learn about the plants brought by the Hawaiians who settled in Iao Valley by taking a short walk through a botanical garden. This valley is rich in cultural and spiritual values and is the site of the battle of Kepaniwai where the forces of Kamehameha I conquered the Maui army in 1790. (6.2 acres)

Map of 'Iao Valley State Monument (HI)

Latitude, Longitude: 20.881187, -156.544597



  • Hiking

    'Iao Needle Lookout Trail and Ethnobotanical Loop Trail Length: 0.6 mi. Activity: Pedestrian Difficulty: Easy Terrain: Wet valley Elevation Gain: 200 ft Park Name: 'Iao Valley State Monument

    Description: A paved walking trail provides a scenic viewpoint of Kuka'emoku ('Iao Needle), an erosional feature which rises 1200 feet from the valley floor. A short paved loop trail meanders though an ethnobotanical garden adjacent to 'Iao stream.

    Route: Trail begins just beyond the park restroom and interpretive signs. The path crosses a bridge over the stream and climbs to the lookout point, where a small shelter is nestled. Directions: End of 'Iao Valley Road (Highway 32), 'Iao Valley.

  • Historic Sites

    Interpretive signage can be found throughout the state monument site.

  • Water Sports

    A stream is accessible via the 'Iao Needle Lookout Trail.



Turn left off Hwy 380 onto Hwy 36 heading for Kahului Go short way (0.8 mile) to Jct. Hwy 36 & 32 Turn left onto Hwy 32 & go 2.8 miles to Jct. Hwy 32 & 30 (last traffic light in Wailuku) Cross traffic light and continue short way (0.7 mile) on Hwy 32 to fork in road at sign for Iao Valley Take right fork and go 2.2 miles to parking lot at end of road

Phone Numbers


(808) 587-0300