'Īao Valley State Park: The Complete Guide

Iao Needle at Iao Valley State Park
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ʻĪao Valley State Monument

54 S High St, Wailuku, HI 96793, USA

Just west of Wailuku in Central Maui, 4,000-acre ʻĪao Valley State Park is known for providing the best views of the legendary ʻĪao Needle, or Kuka’emoku in Hawaiian. Kuka’emoku towers 1,200 feet high above the lush ʻĪao Valley floor (2,250 feet above sea level) and is also called the phallic stone of Kanaloa—the Hawaiian god of the ocean. The peak was used as a lookout by Hawaiian warriors during times of war and subsequently became the site of one of the most important battles in island history between the Maui army and Kamehameha I. The site was also a gathering place for the annual makahiki festival, an ancient Hawaiian New Year festival dedicated to Lono, the god associated with agriculture. Geologically, the ʻĪao Needle is a result of erosion.

ʻĪao Valley is one of the wettest places on Maui, which helps contribute to its green surroundings and abundance of tropical plants. Visitors are welcome to walk the grounds and explore the park's natural beauty under the shadow of Kuka’emoku.

Things to Do

Most visitors come to the park to catch the best views of the ʻĪao Needle, accessible via lookout after a paved pedestrian path to the top of a ridge. After parking in the lot, you’ll be able to see Kahawai or ʻĪao Stream to the left, known for its fast-flowing water and muddy, rocky shoreline. Continue walking up and across the bridge before turning right to reach the lookout. There are about 133 steps to the top, but you’ll be rewarded with the best viewing angle of the ʻĪao Needle as well as the entire ʻĪao Valley and nearby Wailuku. Further down, learn about native Hawaiian plants by taking an additional stroll through the small botanical garden.

Best Hikes & Trails

One of the best things about ʻĪao Valley State Park is that it is easy to find hiking trails. Although the park itself is about 10 miles long and encompasses thousands of acres, the official hiking trails within only make up a few miles at the most. The 0.6-mile walk to the ʻĪao Needle lookout will take around 30 minutes, but there are also options to include a short loop passing the riverbed that runs through the valley.

Where to Camp

While there is no camping allowed inside the park, campers can head to a couple of nearby campsites to take advantage of Maui’s unique natural surroundings.

Camp Olowalu: About 7 miles away, Camp Olowalu is a solar-powered privately owned campground just off Honoapiilani Highway. It provides views of the West Maui Mountains and sits on a protected cove known for kayaking, paddleboarding, and even whale watching in the winter. The prices are steeper than the public campgrounds spread throughout the island, but you’ll gain the additional perks of onsite kayak rentals and options for cabins or raised platform tentalows.

Papalaua Wayside Park: A bit further toward the coast, Papalaua Wayside Park is one of the most easily accessible campgrounds on the island, offering beach access just steps in front of campsites and a popular stretch of water for surfing, fishing, and snorkeling

Where to Stay Nearby

For hotels, the town of Wailuku provides the closest and most convenient accommodations, though driving just a bit further to Kahului, Paia, or Kihei will likely give you more options.

The Old Wailuku Inn at Ulupono: A quaint, local family-run B&B just 3 miles from ʻĪao Valley State Park, the Old Wailuku Inn dates back to 1924. Each of its 10 guest rooms is dedicated to a Hawaiian flower, while the overall theme of the inn and grounds pays tribute to Hawaii's poet laureate of the 1920s and 1930s.

Maui Beach Hotel: This casual hotel in Kahului has water views and a rooftop pool just 10  minutes from the Kahului airport. Located in the heart of downtown Kahului, the Maui Beach Hotel offers comfortable, clean accommodation for those who are looking for a convenient and central location.  

Paia Inn: The vibrant surfing town of Paia is the perfect gateway to the Road to Hana, one of the most popular tourist activities on Maui. Stay right in the middle of the main street at the chic Paia Inn, a small beach hotel with private entrances to each room and outdoor lounge areas set in a tropical garden.

How to Get There

ʻĪao Valley State Park is found at the very end of Iao Valley Road in Central Maui. From the towns of Wailuku or Kahului, take Highway 32 (or Kaahumanu Road) west until it turns into Highway 320, leading directly into ʻĪao Valley State Park. If you’re coming from Lahaina, head east on Highway 30 for just over 22 miles to get to Wailuku. There are no bus services that go into ʻĪao Valley State Park, so you’ll have to drive yourself or catch a ride-sharing service to get there.


The simple walk up to the ʻĪao Valley lookout from the gate is mostly paved, complete with handrails, and easy enough for all levels of hikers; there are, however, steps required to reach the very top. Outside of the lookout, the loop trail to the river and the lower botanical garden are both rocky and mostly unpaved. Given the natural mountainous terrain that helps characterize this park, there, unfortunately, aren’t many options for those who use a wheelchair outside of the main parking lot (which still provides some beautiful views itself). 

Tips for Your Visit

  • Park gates are open from 7 am to 6 p.m. every day. Non-residents must pay $5 for walk-ins and $10 for cars, while Hawaii residents with a valid Hawaii ID are free. To save some money (or if the lot is full), park right outside the gates and walk in. 
  • ʻĪao Valley is known for its rain and subsequent cloud cover, so arriving earlier in the morning is more likely to provide better views from the lookout. However, the frequent rain can also create a lot of mud here, so come prepared with rain gear and sturdy, closed-toed shoes.
  • Be sure to check out the informational plaques spread throughout the property.
  • Overall, ʻĪao Valley is one of the smaller state parks in Hawaii, so don’t expect to spend the entire day here. In fact, most visitors spend a maximum of 30 minutes to one hour inside the park.
  • Although ʻĪao Valley is relatively small, it is a great place to stop while exploring the central part of the island. Pair your time there with a visit to Wailuku, Kahului, or even stop there on your way to or from the Kahului airport (it's less than 8 miles away). Just down the road from ʻĪao Valley Monument, Kepaniwai Park offers themed gardens and a Japanese temple. There is also a larger botanical garden with guided tours available at Maui Nui Botanical Gardens closer to Kahului and the popular Maui Ocean Center Aquarium just 10 miles south in Maalaea.  
  • The restrooms here are rarely open, but they usually provide portable facilities when the onsite bathrooms are out of order.
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'Īao Valley State Park: The Complete Guide