Rising 1,214 feet (370 meters) from the valley floor is the rocky pinnacle known as 'Iao Needle. The lava formation covered in lush vegetation is the most recognizable 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-meter) 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 kilometers) west of Wailuku.
Iao Valley State Park Tours
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Tours & day trips
See all 98 activitiesOpens in new tabWaterfall & Rainforest Hiking Adventure
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See all 10 activitiesOpens in new tabTropical Fruit Tasting Walking Tour at the Maui Dragonfruit Farm
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See all 3 activitiesOpens in new tabMaui: Ma'alaea Catamaran Sunset Sail with Appetizers
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See all 24 activitiesOpens in new tabSnorkeling Cruise to Molokini Crater & Turtle Town
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See all 24 activitiesOpens in new tabRoad to Hana Adventure with Breakfast, Lunch and Pickup.
Reviews of Iao Valley State Park
5/5 - Excellent
Wear tennis shoes
4/5 - Good
There are a lot of steps, but not a hard climb. I did it at 75. Wear comfortable shoes.
4/5 - Good
The park has a lovely walkway around the historic area and along the stream with native plants and tremendous mountain views. The information boards give details of the lives of the ancient Hawaiians and past great battles that took place there. Very interesting! They have also done a wonderful job of renovation after the unfortunate floods a year or so ago that caused rock slides and I'm so glad I got to see it all again.
5/5 - Excellent
Great hiking and swimming in the streams. Absolutely breathtaking views
3/5 - Okay
I wasnt blown away. Hiking to the water below is overrated, not all that unique. The view up top is ok, not all that amazing. The historical significance is compelling, but the plaques etc just barely do it justice. Its fre, its an easy stop if you happen to be in Kuhului and have a little extra time to sort of kill. The views of the cliffs and hills driving in were really the highlight for me.
4/5 - Good
Easy walk to the view point to see Iao Needle. Great view and side paths to walk down to streams
Popular places to visit
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.
West Maui Mountains
Enjoy the beautiful sunsets and explore West Maui Mountains, a favorite green space in Lahaina. Stroll along the area's beautiful beaches or experience its great live music.
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.
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.
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 savor its top-notch restaurants.
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