Sea arches form from caves hollowed out by waves, Leversedge said. Waves from two directions open the cave into an arch. Eventually, the combination of waves, freeze and thaw cycles and erosion bring ...

Hawai‘i Volcanoes National Park this afternoon announced the closure of the Holei Sea Arch overlook until further notice due to new cracks and instability observed on the coastal cliffs. Currently, ...

The 90-foot-tall Hōlei Sea Arch in Hawaii Volcanoes National Park lost a key part of its base on earlier this week and is now at risk of collapse, the park says National Park Service/J.Wei photos One ...

HAWAII VOLCANOES NATIONAL PARK, Hawaii (HawaiiNewsNow) - The famed Holei Sea Arch at Hawaii Volcanoes National Park on Hawaii Island is closed until further notice because new cracks have formed, ...

One of the world’s most iconic sea arches could vanish at any moment, according to the National Park Service. The 90-foot-tall Hōlei Sea Arch in Hawai’i Volcanoes National Park lost a key part of its ...