Keanakākoʻi Crater is accessible via a short day hike along Old Crater Rim Drive, beginning at the Devastation Trailhead parking lot.

Meaning "cave of the adzes", this pit crater lays on the boundary fault that encircles the summit of Kīlauea. Keanakākoʻi was born during a period of great upheaval and summit collapses of Kīlauea during the 1500's to 1700's. 

In 1877, A lava flow covered the crater floor, reportedly burying a rock quarry that may have been a source for the hard, superior stone used to make tools such as the adze (an axe) by Hawaiians.