Visitors from across the world come to the striking 'Iao Valley State Park to see its vertiginous peaks and abundant green rainforest. One of the park's most popular landmarks is the 'Iao Needle, a verdant ridge that forms part of the extinct West Maui Mountains volcano. Towering 370 metres above the valley below, it truly is a sight to behold.
Although the needle sits in the heart of a tropical mountain range, it's easy to get a good vantage point. Visitors young and old should be able to manage the paved 'Iao Needle Lookout Trail and Ethnobotanical Loop. This 800 metre trail starts at the parking area (where you'll also find a bathroom) and slopes gently towards the lookout point, following the course of the 'Iao River.
The spectacular views of the 'Iao Needle are at their best in the morning, before the clouds descend. It's these very clouds that give the needle its name ("cloud supreme") and you should come prepared for a good deal of rain. The park is also known for its clouds of mosquitoes, which congregate in large numbers around freshwater pools repellent should be worn at all times. Before you leave, take the Ethnobotanical Loop to the park's delightful botanical garden, which is full of native plant species.
It may seem hard to imagine now, but this peaceful valley was the site of one of the most important battles in Maui's history. In 1790, as part of his campaign to unite the Hawaiian Islands, King Kamehameha defeated Maui's army here, and legend has it that the bodies of hundreds of fallen soldiers dammed the 'Iao River.
To reach 'Iao Valley State Park from Wailuku, head west along the 'Iao Valley Road (Highway 32) for around five kilometres.
Iao Valley State Park
Visit Iao Valley State Park
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Hyatt Regency Maui Resort & Spa
Reviewed on 19 Feb,2025
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Sheraton Maui Resort & Spa
Reviewed on 20 Feb,2025
Tours & day trips
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Waterfall & Rainforest Hiking Adventure
Food, drink & nightlife
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Sunset Dinner Cruise From Ma'alaea - Prime Rib, Mahi Mahi, Chicken or Pasta
Adventure & outdoor
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Waterfall & Rainforest Hiking Adventure
History & culture
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Road to Hana Premium Picnic via Luxury Limo-Van
Air, helicopter & balloon tours
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West Maui and Molokai Special 45-Minute Helicopter Tour
Popular places to visit
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Bailey House Museum
Visit this former mission post to learn about the culture and artistic legacy of Hawai‘i through paintings and music, plants, clothing and furnishings.
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West Maui Mountains
Enjoy the beautiful sunsets and explore West Maui Mountains, a favourite green space in Lahaina. Stroll along the area's beautiful beaches or experience its great live music.
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Maui Tropical Plantation
Explore the lovely green spaces of Maui Tropical Plantation and enjoy the surfing in Waikapu. In the area, take in the great live music and beautiful sunsets.
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King Kamehameha Golf Club
Enjoy a round of golf in Wailuku at King Kamehameha Golf Club. Stroll along the seaside or discover the area's beautiful sunsets.
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The Dunes at Maui Lani
Play a round of golf in Kahului at The Dunes at Maui Lani, and enjoy other activities such as surfing. In the area, take in the great live music and beautiful sunsets.
Hawaii Nature Center of Iao Valley
Enjoy an outing to Hawaii Nature Center of Iao Valley during your stay in Wailuku. Stroll along the area's beautiful beaches or simply savour its top-notch restaurants.
Top Iao Valley State Park Hotel Deals
Check availability on hotels close to Iao Valley State Park
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