Qualla: Halona Blowhole

Halona Blowhole: Introduction

Thu, 12 Mar 2026 00:00:00 GMT

Photo credit Napnet at English Wikipedia, Public domain. The wave hits rock, disappears underground, and then the ocean exhales. A column of sea spray fires thirty feet into the air through a hole in the volcanic shore, hangs for a moment against the blue sky, and collapses. Seconds later, another wave arrives, and it happens again. Halona Blowhole is a geological parlor trick on Oahu's southeast coast, a lava tube from Koko Crater that channels incoming surf into a narrow opening and turns the Pacific into a geyser. In Hawaiian, halona means lookout, and the name fits the spot precisely: this is a place built for watching.

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Image: Napnet at English Wikipedia | Public domain

Halona Blowhole: How Lava Made a Fountain

Thu, 12 Mar 2026 00:00:00 GMT

Photo credit Ossewa, CC BY-SA 4.0. The blowhole formed thousands of years ago during the same period of volcanic activity that shaped Oahu's southeastern coastline. Lava from Koko Crater flowed into the ocean and cooled into tubes, hollow channels within the hardened rock. Over time, wave erosion opened the seawar...

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Image: Ossewa | CC BY-SA 4.0

Halona Blowhole: Hollywood's Favorite Cove

Thu, 12 Mar 2026 00:00:00 GMT

Photo credit PaulT (Gunther Tschuch), CC BY-SA 4.0. Just below the blowhole lookout sits Halona Cove, a tiny pocket of sand wedged between volcanic rock that locals call Cockroach Cove. The name has not discouraged filmmakers. In 1953, Deborah Kerr and Burt Lancaster filmed the iconic beach scene from From Here to Eternity here, r...

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Image: PaulT (Gunther Tschuch) | CC BY-SA 4.0

Halona Blowhole: What Lives in the Reef

Thu, 12 Mar 2026 00:00:00 GMT

Photo credit Cliff from Arlington, Virginia, USA, CC BY 2.0. The waters around Halona Point are richer than the parking lot above might suggest. A wedge-shaped reef next to the cove is coated in Sinularia leather coral, and the tide pools host echinoderms, sea slugs, eels, and other marine life. In winter, the point becomes a whale-watchin...

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Image: Cliff from Arlington, Virginia, USA | CC BY 2.0

Halona Blowhole: A Lookout Worth Its Name

Thu, 12 Mar 2026 00:00:00 GMT

Photo credit Daniel Ramirez from Honolulu, USA, CC BY 2.0. Halona Point sits between Hanauma Bay to the west and Sandy Beach to the east, part of a stretch of coastline where Oahu's volcanic origins are most visible. The tuff cliffs, the lava tubes, the raw rock meeting open ocean, all of it speaks to the Honolulu Volcanic Series that re...

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Image: Daniel Ramirez from Honolulu, USA | CC BY 2.0