Hōlei Sea Arch Collapse: What Hawaii's Shifting Coast Reveals
The Hōlei Sea Arch in Hawaiʻi Volcanoes National Park has fallen into the sea. The National Park Service warns of unstable cliffs.
The Hōlei Sea Arch in Hawaiʻi Volcanoes National Park has collapsed into the Pacific. The National Park Service confirmed the loss of the well-known rock formation on 1 October. The arch, roughly 27 metres high, stood on a remote stretch of the Big Island's coast shaped by waves and volcanic activity. According to the park administration, the collapse occurred between 23 and 27 September, possibly during the park's temporary closure because of Tropical Storm Nolo.
A Coast in Motion
The collapse is not evidence of a single spectacular event but part of a geological process. Surf, rain, salt water, earthquakes and the nature of the lava rock continually reshape the cliffs. Arches form when waves wash out weak points; they last only as long as their supporting rock stays stable enough.
The National Park Service stresses that visitors should keep their distance from cliff edges. After a collapse, new cracks and overhanging sections can appear that are not visible from the trail. Photographs at exposed spots are no reason to ignore barriers or safety distances.
What Visitors Should Know
The park is no less worth visiting because one formation has been lost, but it is different. Natural monuments are not static backdrops. Anyone planning a trip should check current National Park Service notices on trails, weather, volcanic activity and closures. That applies especially on coasts, where high waves and unstable ground can heighten risks.
For travellers from Switzerland, the case is also a reminder of the limits of travel photos and maps: a place can change quickly, even if it has been promoted as a sight. Respect for local safety instructions and enough time for detours are part of planning a trip.
The collapsed arch will not be rebuilt. Hawaiʻi's coastline keeps telling its story – just in a different shape.
Sources
- U.S. National Park Service, release of 1 October 2026: nps.gov/havo/learn/news/20261001-nr-holei-sea-arch_collapse…
- National Park Service, Hōlei Sea Arch: https://www.nps.gov/places/holei-sea-arch.htm
- Associated Press, 3 October 2026: https://apnews.com/article/6cc8d0a2ebc2ab36ee1cd4b69f8ea5f0
- Bild, 2026: bild.de/leben-wissen/reisen/hawaii-holei-sea-arch-ins-meer-…
