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‘Īao Needle Hike: Everything You Need to Know

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For humans. By humans.

The ‘Īao Needle Hike is an easy trail that packs a lot of punch, offering jaw-dropping views of some of Maui’s most lush landscapes—and an important glimpse into Hawaii’s history and culture. If you want to experience this little slice of heaven in the West Maui Mountains for yourself, here’s everything you need to know about the ‘Īao Needle Hike.

Iao Needle along the Iao Needle Hike in Maui

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About the ‘Īao Needle Hike


0.6 miles

Elevation gain:

200 feet

Iao Needle in Iao Valley State Park in Maui




You’ll sadly have to leave your furbabies home for this one.

What is the history of the ‘Īao Needle?

The ‘Īao Needle is tucked away in the lush rainforests of the West Maui Mountains, one of the wettest places in Hawaii. Due, in part, to the rainy climate, the soft rock surrounding the ‘Īao Needle eroded away over the course of millenia, leaving behind the 1,200-foot tall spire. For, ahem, obvious reasons, the Needle was known by the ancient Hawaiians as the phallic stone of Kanaloa, the god of the ocean.

Due, in part, to its spiritual significance, the ‘Īao Valley became a burial ground for ali’i (Hawaiian high chiefs), starting in the 15th century. Remains of several great chiefs are buried throughout the valley in secret locations. 

West Maui Mountains in the Iao Valley State Park

The ‘Īao Needle became even more significant to the history of the Hawaiian islands in 1790, when King Kamehameha I took on the Maui army in the surrounding valley. The Maui army used the ‘Īao Needle as a lookout (how in the world did they get up there?), but still lost to Kamehameha’s mighty army. This loss eventually led to the unification of the Hawaiian islands for the first time in history.

How to Get to the ‘Īao Needle Hike

The trailhead for the ‘Īao Needle Hike is located here, near the town of Wailuku in the West Maui Mountains of Central Maui. Assuming you have a rental car in Maui, it’s about 40 minutes east of Lahaina, 40 minutes north of Wailea, or just 20 minutes from the airport in Kahului .   

The parking lot holds about a few dozen cars—when my husband, Justin, and I visited in the late morning, the lot was completely full, but because folks usually only spend half an hour or so here, we scored a spot pretty quickly. 

Parking lot of the Iao Valley State Park

Parking in the lot costs $10 per passenger vehicle for non-residents, although if you’re willing to walk a bit, you may be able to find some free parking in the road leading up to the lot. Just be sure to check for “No Parking” signs and don’t leave valuables in your car.

There’s also a $5 per non-resident charge to enter the park. Per my reading of the Division of State Parks website, this is in addition to the parking fee.

When Justin and I went, though, the attendee that was helping visitors pay at the automated machine insisted I only owed $10 (instead of the $20 that would include both parking and two non-resident entrance fees). So I’d plan on paying for both parking and entrance fees and maybe you’ll just be pleasantly surprised if it just winds up being one or the other!

Woman standing in front of the Iao Needle on the Iao Needle Hike in Maui

What to Expect Along the ‘Īao Needle Hike

From the parking lot, you’ll walk west over a couple of bridges (make sure to look to your right for spectacular views of the Needle) and on to the paved pathway. To be honest, the ‘Īao Needle Hike is more of a gentle scenic walk, but it’s one of the best hikes on Maui for beginners or visitors that need an easy option.

Shortly after you start walking down the path, the trail branches off to the left to the Ethnobotanical Loop, where you’ll pass lush native plants to Hawaii, like taro, heliconia, and guava. There’s also several benches to sit at if you need to take a breather or just want to take in your stunning surroundings.

Heliconia plant in Hawaii

Once you loop back to the main path, you’ll start climbing up about 100 stairs to reach a small rain shelter. This is the official ‘Īao Needle Viewpoint. 

The Needle and the surrounding valley are incredibly lush and green. It also has a mystical kind of vibe—in fact, when we visited, there was a dude playing sound bowls under this shelter, with several people meditating around him. So be prepared to be quiet and respectful if anyone is having a good ol’ meditation sesh while you’re up there!

Man playing sound bowls at Iao Needle Viewpoint

This is the end of the “official” hike, but you can also continue along the paved path down to the ‘Īao Stream.

Here, the paved trail will eventually turn into an uneven and rocky dirt path that follows along the stream, where you can find several small pools and areas to soak in (so don’t forget your swimsuit!). This would be most enjoyable on a REALLY hot day- I was shocked by how chilly the water is!

Iao Stream in the Iao Valley

I’d also suggest including some hiking sandals that can double as water shoes on your Hawaii packing list to protect your feet against the stabby rocks along the creek floor. Justin has these Teva hiking sandals and I have a cult-like love for my Tevas.

The further along the stream you go, the trail will branch off along several unmarked pathways into the jungle. Unless you’re particularly good with route finding, I’d suggest sticking to the stream, so that you can always follow it back—it’s really pretty, anyway!

Woman standing in Iao Stream in Iao Valley State Park

One important thing to note—this area is very susceptible for flash flooding. Even if it isn’t raining in the ‘Īao Valley, that doesn’t mean that it’s not raining elsewhere along the stream. So if you notice a change in the color or level of the water, get to higher ground as quickly as you can.

Frequently Asked Questions About the ‘Īao Needle Hike

What’s the best time to go to the ‘Īao Needle Hike?

As mentioned above, the ‘Īao Valley is renowned for being one of the wettest places on the planet, receiving an average of 386 inches of rain per year (that’s over an inch per day!). Typically, clouds roll in by lunchtime, shrouding the Needle and  rain showers can be expected throughout the afternoon. 

So if you want to, you know, actually see the ‘Īao Needle, I’d suggest coming in the morning. Better yet, come first thing when it opens at 8 AM so you can get the Needle to yourself!

Iao Needle along the Iao Needle Hike in Maui

How long does the ‘Īao Needle Hike take? 

You could probably do the hike itself in about 20 or so minutes, but be sure to build in some extra time in your Maui itinerary for plenty of photos and swimming in the ‘Īao Stream. Most visitors will not need more than two hours here.

Is the ‘Īao Valley worth it?

Given its incredible lushness and its importance to Hawaiian history and culture, I certainly think so! 

That being said, the ‘Īao Needle Hike is an easy trail and, unless you’re swimming in the creek, it will probably only be a brief stop in your day. So manage your expectations and you’ll be glad you were able to soak in just a bit of this sacred valley. 

West Maui Mountains along the Iao Needle Hike in Maui

Do you have any questions about the ‘Īao Needle Hike? Let me know in the comments below!

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