The Hōlei Sea Arch, a notable geological feature located within Hawaii Volcanoes National Park on the Big Island, has tragically collapsed into the Pacific Ocean. Officials from the National Park Service (NPS) confirmed the event occurred on the evening of September 27, with the arch’s disappearance marking a significant loss for both the landscape and visitors to the park.
:max_bytes(150000):strip_icc():format(jpeg)/Hoeil-Sea-Arch-Hawaii-100226-1-0ec257f8c3b5480f96cc2347d1001e39.jpg)
The iconic 90-foot sea arch was observed intact as recently as September 23, before strong storms swept through the region, resulting in the temporary closure of the park. While the exact circumstances leading to the collapse remain unclear, it is believed that the severe weather associated with Tropical Storm Nolo contributed to its demise.

In a statement released on October 1, the NPS described the arch as an “iconic” feature of the coastline, highlighting its historical significance. The natural structure, formed through a process known as differential erosion over approximately 550 years, was created by the varying hardness of different layers of lava. The name ‘Hōlei’ is derived from a small native plant belonging to the milkweed family.

Following the arch’s collapse, the park issued warnings to visitors about the ongoing risks associated with the unstable coastal cliffs. The NPS has urged the public to refrain from approaching the cliff edges, which pose serious dangers due to their sheer drops and potential instability. Social media posts following the announcement revealed that some individuals had ventured into restricted areas, endangering both themselves and rescuers.
The NPS has emphasised the importance of respecting park boundaries, stating that cliffs in the region can collapse suddenly. The coastline has a history of instability due to various natural disasters affecting the area, including earthquakes that accompanied the 2018 Kīlauea eruption. In fact, damage from this seismic event had already prompted earlier closures of viewing areas, with the original location ceasing operations in January 2020, only to be replaced by a safer spot further from the cliff’s edge.
Visitors and admirers of the Hōlei Sea Arch have taken to the internet to express their sorrow over its loss. Many shared personal anecdotes of visits to the arch, reflecting on its beauty and the ephemeral nature of such geological formations. Comments on social media highlighted a collective appreciation for the natural landscape, with sentiments ranging from shock to acceptance of nature’s relentless cycle of change.
One commenter reminisced, “No!!! We saw it last October! So sad to hear this,” while another noted, “Nature does what it wants. Blessed to have seen it.” These sentiments echo a deep emotional connection many individuals have with Hawaii’s unique landscapes, which serve as both a source of wonder and a reminder of nature’s power.
The demise of Hōlei Sea Arch illustrates the vulnerability of natural landmarks in the face of environmental changes. Despite its eventual collapse being anticipated, the event has nonetheless left a palpable void for visitors who cherished the arch as part of their journey through Hawaii. The park continues to educate guests on the area’s geological features, resilience, and the natural processes at work.
As the NPS manages the landscape moving forward, it remains crucial for both locals and tourists to heed caution and respect the natural environment. They must remain vigilant of the park’s evolving geography while embracing the beauty and transience of Hawaii’s shoreline. Though the Hōlei Sea Arch is no longer standing, its memory endures in the hearts of those who marvelled at its grandeur.
