Iao Valley State Park

Iao Valley State Park is one of Maui’s most scenic and culturally important natural landmarks. Located just west of Wailuku, this lush valley is best known for the Iao Needle, a 1,200-foot-tall rock feature that rises dramatically above the rainforest floor. The park’s paved trails make it easy for visitors to experience the beauty of Central Maui’s landscape — complete with tropical foliage, streams, and sweeping views of the surrounding West Maui Mountains.
Beyond its beauty, the Iao Valley holds deep historical significance. It was the site of the Battle of Kepaniwai in 1790, where King Kamehameha I fought to unite the Hawaiian Islands. Today, the valley is both a peaceful escape and a sacred place, offering a window into Maui’s past.
Iao Valley State Park Details
- Location: Iao Valley State Park, 54 S Iao Valley Rd, Wailuku, HI 96793
- Hours: Daily, 7:00 AM – 6:00 PM. Must enter park by 5 PM
- Entrance Fee: $5 per person (non-residents); $10 parking fee per vehicle
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Frequently Asked Questions about Iao Valley State Park
Do I need a reservation for Iao Valley State Park?
Yes. Non-resident visitors must make an online reservation for both parking and entry in advance. Same-day reservations are allowed if space is available, but weekends and mornings often book up quickly.
How long does it take to visit Iao Valley?
Most visitors spend about 1 to 2 hours exploring the valley, walking the short loop trail, and visiting the scenic overlook. It’s a relatively quick stop that can easily fit into a day exploring Central Maui.
Is Iao Valley good for hiking?
The main park trail is short and paved, making it perfect for families with kids or those who aren't up for a strenuous trek. For more extensive hiking, the nearby Waihe‘e Ridge Trail provides a more challenging experience with panoramic mountain views.