Hōlei Sea Arch Collapse Erases Hawaii’s Iconic 90-Foot Coastal Landmark From Visitor Views

Hawaiʻi has lost one of its most recognisable volcanic landmarks after the 90-foot Hōlei Sea Arch collapsed into the Pacific Ocean. The National Park Service confirmed that the landmark was standing on September 23, 2026, but had disappeared by the night of September 27. The collapse occurred along the remote coastline of Hawaiʻi Volcanoes National Park, where powerful surf and geological instability have continually reshaped the island. The exact moment remains unknown, although the arch may have fallen during the temporary park closure for Tropical Storm Nolo. For travellers, the disappearance removes a major photographic attraction at the end of Chain of Craters Road. However, the event also illustrates why the park’s volcanic coastline remains a living, constantly changing destination.

A Landmark Disappears Into the Pacific

The Hōlei Sea Arch was not a recent geological feature. The National Park Service says the formation was carved into an ancient lava flow dating back approximately 550 years. Differential erosion gradually removed softer layers of volcanic rock, leaving a dramatic arch projecting from the coastal cliff.

At roughly 90 feet, or 27.4 metres, high, the formation became an established stop for visitors travelling along Chain of Craters Road. Its position above the Pacific created a striking contrast between black volcanic rock, deep ocean and open sky.

That landscape has now changed permanently. The NPS reported that the arch was still intact on Wednesday, September 23, but had collapsed by Sunday night, September 27. Officials have not identified an exact time because the area was temporarily closed during Tropical Storm Nolo.

The collapse itself was dramatic, but it was not entirely unexpected. The park had monitored instability around the formation for years and had repeatedly warned visitors about the hazards of the surrounding cliffs.

Years of Warning Preceded the Collapse

The disappearance followed a long period of geological change along the southern coast. The 2018 Kīlauea eruption and summit collapse caused extensive earthquakes and structural changes across Hawaiʻi Volcanoes National Park.

The NPS records more than 60,000 earthquakes during the 2018 eruption period. The event also dramatically altered Kīlauea’s summit and damaged infrastructure throughout the park.

The Hōlei coastline experienced its own consequences. Earthquakes damaged cliffs near the arch, while subsequent wave action continued to weaken the formation.

In January 2020, park officials discovered new cracks and instability around the original viewing area. They closed the overlook and moved visitors farther inland. A safer viewing area opened in March 2020, approximately 1,000 feet from the gate at the end of Chain of Craters Road.

The intervention demonstrated an important principle for volcanic tourism. A landmark can remain visually intact while the ground around it becomes increasingly unsafe.

The sequence matters for tourism operators. Natural attractions can change faster than destination marketing materials, maps and visitor expectations.

Erosion Was Always Part of the Story

The Hōlei Sea Arch collapse should not be viewed simply as a sudden loss. It represents the final stage of a natural process that began when lava reached the ocean and cooled into rock.

Hawaiʻi Volcanoes National Park explains that coastal lava formations begin eroding almost immediately. Waves attack weaknesses in the cliff, gradually creating caves. Continued erosion enlarges those openings until an arch develops. Eventually, the remaining rock bridge collapses and can leave a sea stack behind.

This makes the former landmark particularly significant from a geological perspective. Its temporary nature was not an incidental characteristic. Impermanence was fundamental to its formation and eventual disappearance.

The NPS had previously described the arch as temporary and noted that other formations could replace it as the coastline continues to migrate inland.

That process gives travellers a different way to understand the destination. The attraction was never simply the arch itself. The broader attraction is a coastline where volcanic rock, waves, earthquakes and weather continually redraw the landscape.

What Travellers Can Expect Now

Travellers should not attempt to reach the former arch site simply to photograph its remains. The NPS has warned visitors to stay away from unstable coastal cliffs, which drop vertically towards the Pacific.

The agency has also reported that people have entered closed areas near the former arch after its collapse. Such behaviour creates serious risks because falling from the cliffs could result in severe injury or drowning.

The safest approach is therefore straightforward. Visitors should follow current closures, obey barriers and rely on official park information before travelling to the coastal section.

For travellers planning a wider visit, the loss of the arch does not mean Hawaiʻi Volcanoes National Park has lost its principal attractions. The park remains a major volcanic landscape with extensive roads, trails, crater viewpoints, lava formations and cultural sites.

The Park Remains a Major Tourism Engine

The significance of the Hōlei Sea Arch extends beyond photography. Hawaiʻi Volcanoes National Park plays a substantial role in the economy of Hawaiʻi Island.

According to the latest NPS visitor-spending analysis, 1,433,593 visitors entered the park in 2024. Those visitors spent approximately $445 million in nearby communities. The spending supported about 3,605 jobs and generated an estimated $571 million in economic output.

The figures show why changes to individual attractions matter to the wider visitor economy. Hotels, restaurants, tour operators, rental-car companies, guides and other tourism businesses all benefit from people travelling through the park.

The same NPS analysis found that around 80% of visitors stayed overnight in the local area. Their average expenditure reached approximately $763 per group per night.

Consequently, the disappearance of one attraction is unlikely to eliminate demand for the park. However, it reinforces the importance of maintaining a broad destination proposition rather than relying on individual photographic landmarks.

Why Volcanic Tourism Needs Flexibility

The Hōlei Sea Arch collapse offers a wider lesson for destination management. Volcanic tourism depends on landscapes that can change without warning.

That reality differs from conventional attractions such as museums, monuments and purpose-built visitor centres. A volcanic crater can deepen, a lava field can expand, a cliff can collapse and a trail can become unsafe.

Hawaiʻi Volcanoes National Park has already experienced these challenges at scale. The 2018 Kīlauea eruption destroyed more than 700 homes, displaced more than 2,000 people and covered approximately 30 miles of road in the Lower East Rift Zone. The eruption also added roughly 875 acres of new land to Hawaiʻi.

The park subsequently undertook a long recovery programme. Infrastructure, utilities, trails and roads required extensive assessment, stabilisation and repair after the eruption and summit collapse.

For travel businesses, this creates a need for adaptable itineraries. Operators should avoid presenting one geological feature as the sole reason for visiting the destination.

Instead, itineraries can emphasise the wider landscape. That approach allows travellers to appreciate geological change rather than treating every alteration as a loss.

Practical Details for Future Visits

Travellers heading to Hawaiʻi Volcanoes National Park should plan around conditions rather than assuming every attraction will operate normally.

The park’s current information advises visitors to prepare for unpredictable weather. Remote roads can have limited services, while some locations experience poor connectivity. Chain of Craters Road also has limited emergency services.

Parking requires advance planning as well. The NPS says the park welcomes around two million people annually, while parking at popular locations can fill early during busy periods. The parking area at the end of Chain of Craters Road has 37 spaces, including three designated accessible spaces.

The park currently charges a standard entrance fee. A private vehicle pass costs $30, a motorcycle pass costs $25, and pedestrian or cyclist admission costs $15. The standard vehicle pass is valid for seven days.

The park also operates a Hawaiʻi Tri-Park Annual Pass covering Hawaiʻi Volcanoes National Park, Haleakalā National Park and Puʻuhonua o Hōnaunau National Historical Park.

Visitors should nevertheless verify conditions immediately before departure because weather, volcanic activity, road damage and safety assessments can trigger short-notice changes.

The Coastline Will Keep Evolving

The disappearance of the Hōlei Sea Arch changes the visual identity of one of Hawaiʻi’s most dramatic coastal drives. Yet it also reinforces the geological character that makes Hawaiʻi Volcanoes National Park distinctive.

The arch survived for centuries because erosion shaped it gradually. The same forces ultimately destroyed it. For travellers, the missing landmark becomes another chapter in the island’s geological story.

The NPS continues to manage the park around that changing environment, balancing access with visitor safety. Its experience with earthquakes, volcanic activity, storm damage and unstable cliffs demonstrates why official guidance remains essential.

Travellers arriving in Hawaiʻi should therefore expect a destination that evolves between visits. The former Hōlei Sea Arch may now exist only in photographs, but the volcanic coastline that created it remains active, dramatic and continually changing.