Holei Sea Arch, Iconic Lava Rock Formation in Hawaii Volcanoes National Park, Collapses
The Holei Sea Arch, a notable 90-foot-tall lava rock formation in Hawaii Volcanoes National Park on Hawaii Island, has collapsed into the Pacific Ocean.

Portland, OR, October 2, 2026 —
The Holei Sea Arch, a prominent natural landmark standing approximately 90 feet tall, has recently collapsed into the Pacific Ocean. The formation, situated within Hawaii Volcanoes National Park on Hawaii Island, was a distinctive feature composed of lava rock.
The exact date of the collapse was not immediately available. Park officials have not yet released details regarding the circumstances or the timeline leading up to the arch’s fall.
The Holei Sea Arch was recognized for its geological significance as a lava rock formation sculpted by natural forces over time. Its collapse marks the loss of a notable visual element within the park’s landscape.
Hawaii Volcanoes National Park is known for its active volcanic geology and diverse natural features, including lava tubes, craters, and coastal formations. The National Park Service manages these sites, often documenting natural changes and geological events.
Further details regarding the specific cause of the collapse or any immediate impact on park accessibility or visitor advisement are expected to be provided by park authorities.
Story summarized from the original created by KHNL News staff, Jordan Gartner on www.kptv.com, see more information here.
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