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Maui is the second largest of the islands in the state of Hawaii, and its Iao Valley is undoubtedly one of the places that evoke both a sense of calm and perhaps intimidation, as some see it as a haunted place. As per Hawaiian historian Samuel Kamakau, the remains of the royal kings were buried here, including that of the King of Hawai’i Kapawa. Chief Kaka'e, Maui's ruler in the late 15th century, is said to have designated the Iao Valley as an ali'i (royal) burial ground.

Interestingly, in 1790, there was the bloody Battle of Kepaniwai ("the damming of the waters"), which took place in the valley, where Kamehameha the Great defeated Kalanikūpule and the Maui army. There were many dead bodies that blocked the Iao Stream.

Today, Iao Valley is lauded as a cultural and spiritual site for the locals but mostly as a nature escape for those looking for a reboot. The valley sprawls over about 6.2 acres of lush green land consisting of gurgling streams, verdant mountains, and dense rainforest. Apart from its historical significance, the valley is touted for its natural environment, which is why it was designated a National Natural Landmark in 1972.

Iao Valley State Monument, Iao Needle, Maui

Iao Valley Maui - Hike
Source: Visual Hunt/ Kirt Edblom
The majestic Iao Needle in Maui. 

One of the key features of the Iao Valley is Kuka'emoku, also called the Iao Needle, which is a 1200-foot-high, green-mantled rock caused by erosion. In the past, Hawaiians came here to celebrate and honor the god of agriculture, Lono, during the Makahiki festival. The valley is protected by the god of light, Kāne, who is also seen as the provider of life. He is associated with wai (freshwater), streams, and clouds. While the Hawaiian god of the underworld, Kanaloa, is represented by the phallic-looking Iao Needle.

Those who are interested in Hawaiian mythology and spirituality can consider visiting the two temples (heiau), notably Halekii and Pihana, tucked on a ridge near the mouth of the valley-coursing Iao Stream.

Related: 10 Of The Most Beautiful Small Towns You Should Visit In Hawaii

Hiking The Iconic Iao Needle In Maui

Hiking trail in the Iao Valley.
Source: Visual Hunt/ blese
A hiker crossing the stream in Iao Valley. 

While Maui is a perfect beach destination that will leave one in awe, there are also plenty of thrilling activities, such as hiking the Iao Needle, which is ideal for those itching to explore. The majestic Iao Needle is Maui’s iconic landmark and overlooks the Iao Stream.

The family-friendly hike consists of 0.6 miles of walking. The hike starts a little further to the park’s restrooms and interpretive signs. Enjoy the crisp air and the breathtaking green foliage while crossing a bridge over the stream. During the summer, hikers can cool down from the heat by swimming in the cool stream, which makes for a great stop.

After that, climb to the lookout point fitted with a small shelter, where one can relax. This is the moment to appreciate rejuvenating nature and take in the beautiful scenery. Arriving at the lookout is a reward for hikers chasing spectacular views of the valley.

Children can take a leisurely rainforest walk and visit the interactive exhibits at the Hawaii Nature Center. On the way back, one can also relish the wild guavas on the hiking trail. There is a cafe at the site, where visitors can enjoy some chilled refreshments.

It is important to know that Iao Valley is the second-wettest region of Hawaii, just after Mt. Waialeale on Kauai. It receives more than 400 inches of rain annually, which means it is recommended to check the weather before hiking here.

  • Elevation: 200 feet
  • Length: 0.6 mile
  • Duration: 2 hours
  • Visitor’s Center opening hours: 7:00 a.m.–6:00 p.m. (daily)
  • Entrance fee for non-residents: $5 (children visit for free).
  • Don’ts: Mountain biking is not allowed, and pets are prohibited in the valley.
  • Direction: Take Highway 32 towards the end of Iao Valley Road.

The Iao Valley State Monument is currently closed until April 15, 2023, for the slope stabilization project and parking lot improvements.

Flash floods are common in Maui, so make sure to check the weather before visiting the attraction.

Related: 10 Things You Didn't Know You Could Do In Hawaii

Kepaniwai Park and Heritage Gardens

Kepaniwai Heritage Park
Source: Visual Hunt/ Joel 

Chinese pavilion at the Kepaniwai Heritage Park in Iao Valley, Maui.

Another attraction right in the Iao Valley is the Kepaniwai Park’s Heritage Gardens, which was established in 1952 to commemorate the diverse heritage of immigrants coming from China, Japan, Korea, the Philippines, and Portugal to the island. The attraction is located adjacent to the Wailuku Stream and is decked out with interesting structures such as the England-style Saltbox, ancient dwellings of the immigrants, and a Portuguese-style villa with gardens. There is also a Japanese tea house and a Chinese moon gate.

The Hawaii Nature Center, nestled just outside the gardens, has a museum and a section dedicated to conservation that children can learn about.

  • Facilities: picnic pavilions, barbecue grills, and restrooms.