Iao Valley State Park

Photo provided by Hawaii Visitors and Convention Bureau
Iao Valley State Park
Iao Valley State Park
Photo by Bruce Brown
Photo by Terry Porter


An exotic landscape of dense rain forest surrounded by cliffs and known for its prominent lava formation.

Rising 1,214 feet (370 metres) from the valley floor is the rocky pinnacle known as 'Iao Needle. The lava formation covered in lush vegetation is the most recognisable landmark in 'Iao Valley State Park, and looks down on a valley floor of dense rain forest.The needle is an extension of the West Maui Mountains, an extinct volcano. The last major eruption here was over 500,000 years ago.Walk to the needle along the 'Iao Needle Lookout Trail and Ethnobotanical Loop. This is a half-mile (800-metre) paved trail that borders the 'Iao stream, starting at the parking area and restroom. The gradient is gentle enough for children, and there is a lookout point at the end of the trail. Bring plenty of insect repellant with you as clouds of mosquitos hover near pools of fresh water.The best views of the needle from the valley floor come earlier in the day before the clouds arrive and obscure the peak. 'Iao means “cloud supreme,” and the park is the one of the wettest spots in Hawaii. On the way back, take the Ethnobotanical Loop to a small botanical garden featuring indigenous plants. The park is a place of great local historical significance. It was here, in 1790, that King Kamehameha fought a savage battle against Maui’s army in his quest to unite Hawaii under one ruler. He won, but hundreds of warriors were slaughtered, and their bodies were said to dam the 'Iao River for a time.'Iao Valley State Park is located at the end of 'Iao Valley Road (Highway 32), 3.1 miles (5 kilometres) west of Wailuku.

Tours & day trips

See all 83 activities

Water activities

See all 58 activities

Classes & workshops

See all 20 activities

Private & custom tours

See all 19 activities

Air, helicopter & balloon tours

See all 17 activities

Popular places to visit


Top Hotel Deals

Yonegan Central Maui Getaways

Yonegan Central Maui Getaways

2 out of 5
197 North Market Street Wailuku HI
Yonegan Central Maui Getaways
Howzit Hostels

Howzit Hostels

1 out of 5
2080 W Vineyard St Wailuku HI
Howzit Hostels
The Historic Wailuku Inn

The Historic Wailuku Inn

3 out of 5
2199 Kahookele St Wailuku HI
The Historic Wailuku Inn
Hampton Inn & Suites Maui North Shore

Hampton Inn & Suites Maui North Shore

3 out of 5
130 West Kaahumanu Avenue Kahului HI
Hampton Inn & Suites Maui North Shore
Suite Maui Paradise Condo

Suite Maui Paradise Condo

2 out of 5
Wailuku HI
Suite Maui Paradise Condo
The Westin Maui Resort & Spa, Ka'anapali

The Westin Maui Resort & Spa, Ka'anapali

4.5 out of 5
2365 Kaanapali Pkwy Lahaina HI
The Westin Maui Resort & Spa, Ka'anapali
Royal Lahaina Bungalows & Spa

Royal Lahaina Bungalows & Spa

5 out of 5
2780 Kekaa Drive Lahaina HI
Royal Lahaina Bungalows & Spa
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.