Haleakala National Park

Haleakala National Park: Halemau'u Trail

Take a crash course in vulcanology as you hike into a giant dormant volcano on this exotic 5.3-mile out-and-back on the island of Maui.

Trail Facts

  • Distance: 4.2



Location: 20.75256, -156.228607

From Kahului, take Haleakala Hwy. (becomes Crater Rd.) for 28.3 miles into park. Stop @ Halemau’u trailhead.


Location: 20.753412, -156.226151

Keep NE


Location: 20.755697, -156.222275

Straight @ 3-way with Supply Trail (staying on Halemau’u Trail); first view over the blown-out side of the massive volcano that forms more than 75 percent of the island


Location: 20.755751, -156.218964

Crest volcanic lip (superb views) then start switchbacking 1,000 ft. to the crater floor


Location: 20.755741, -156.215027

Pass cliff bands of jagged and scissor-sharp black lava (careful not to slash your hiking shoes)


Location: 20.755203, -156.212997

Clouds drift over the Ke?anae Valley, where various eco-zones (from cinder ash deserts to lush rainforests) thrive. Views to the Pacific Ocean, too


Location: 20.753677, -156.214661

Cemented lava flows and ash fields below


Location: 20.752155, -156.21315

Koolau Gap (6,700 ft.): Photograph hillsides and lava mounds streaked in reds, browns, and greens. Campers: Continue S for another mile to Holua Cabin (permit required)