Pā Kaʻoao Trail

Pā Kaʻoao is a 0.4-mile out-and-back from Haleakalā Visitor Center, climbing the nearby puʻu to a crater view and old rock enclosures. The route gains about 100 feet; allow roughly 30–45 minutes, especially if you linger at the top. The path is brief but uphill, rocky, and exposed, and the summit’s altitude can make a short climb feel harder than it looks. It’s a good choice if you want a quick walk with a cultural story; the nearby Keoneheʻeheʻe (Sliding Sands) Trail is the longer descent into the crater.

More than 100 archaeological pā—walls, fences, or enclosures—sit on the hill’s leeward side. Stay on the marked route to avoid damaging them. Summit weather can change quickly, bringing wind, rain, cold, or intense sun; be prepared even for this short outing.

Pā Kaʻoao means “the fences of Kaʻoao.” The pā were likely built by Native Hawaiians between the mid-15th and mid-17th centuries. One tradition tells of a former aliʻi (chief) of Kaupō named Kaʻoao, whose group built enclosures as shelter while fleeing a rival; later travelers are also said to have used them on the way to Haleakalā’s summit. Treat that account as tradition, not established history. The trail itself was built by the Civilian Conservation Corps in 1934.

Park at the Haleakalā Visitor Center; the trail climbs the puʻu beside it. Drinking water is available at visitor centers, but there is no food, gas, or supplies for sale in the park. If you’re going for sunrise, reserve summit entry between 3 and 7 a.m. Parking is restricted to designated lots, which can close when full. Pets are prohibited on park trails.