Boundary Trail

Image Credit Forest & Kim Starr|
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Phone (808) 973-9782
Address 1177-1599 Waipoli Rd, Kula, HI 96790
Out and back trail that connects to other trails in Maui's upcountry area.

• General: Cost: Free • Hiking: Hiking • Hiking: Length: 4-5 Miles • Hiking: Level: Moderate • Hiking: Major Elevation Changes
• Hiking: Out & Back Trail • Sightseeing: Great Views

The Boundary Trail is a 4.4 mile long (each way), out and back style hiking trail in the Kula area of Maui.

The trail itself isn't overly difficult for most hikers but elevation gains of around 1,000 feet mean this isn't for everyone. It's often to be considered a moderately difficult hike.

Our map / directions page marks the exact location of the trail but you'll likely lose cell signals as you work your way to the trailhead so make a note of the directions before you head out. You're basically trying to get to Highway 377 where you'll turn right on Waipoli Road. This paved road should be driven with caution as it switchbacks up the mountain. When the pavement ends it's a relatively short walk down the dirt road where the trail begins.

Since this trail starts in Maui's upcountry region, you'll be at a higher altitude (around 6,400 feet above sea level) and the weather is often cooler here so plan accordingly. In fact, pay close attention to the weather up here as it can change quickly and possibly even blanket you in a thick fog at times.

Be sure to wear bright colors, as hunters may be in this area, and always stay on the trail. On that note of safety, be sure to read Hiking Safety & Essentials before heading out.

The Boundary Trail descends over a series of switchbacks to the lower boundary and then heads south above the fence line to a ranger's cabin at the junction of the Redwood Trail and Plum Trail.

Around 2.6 miles in and the Boundary Trail will meet with the Upper Waiohuli Trail where you'll have the option to take the Upper Waiohuli Trail to Waipoli Road and then walk that back to your car. Or, you can continue on the Boundary Trail to the end and hike back the same way you hiked in.

Some of the trail is through shady, forested areas but you'll also enjoy plenty of amazing views of the Kula area and central Maui in along the way.