Monster Surf Exposes Rare Petroglyphs in Hawaii

Petroglyph on Oahu North Shore

Epic winter swells just off of Oahu, Hawaii, have churned up monster waves more than 7 meters high, sent seawater surging around the foundations of beachfront homes, and gnawed away at sandy cliffs along the island’s North Shore.

They’ve also exposed rare petroglyphs that have not been seen in years.

The unusually strong seasonal surf has washed away layers of sand all along Pupukea Beach, just east of the big-surf mecca of Waimea, to reveal dozens of large glyphs carved into the bench of lava rock.

More than 70 carvings have been exposed, mostly depicting human-like figures and dogs, according to the Historic Hawaii Foundation, whose workers are documenting the images.

Petroglyph on North Shore of Oahu, Hawaii
Strong winter swells have washed away the sand from the lava rock along Oahu’s North Shore, exposing petroglyphs of dogs and human-like figures (Photo by Donna Ching/Historic Hawaii Foundation)

A public safety officer reported the find to the foundation in late January, but social media have been rife with reports by surfers, beachcombers, and rock-art enthusiasts who have been sharing pictures of the glyphs since shortly after the new year when the swell started.

By most accounts, the North Shore petroglyphs were last seen in 2010, when similar winter weather exposed some of them. Before that, they had not been observed since 2004.

The appearance of the markings seems to coincide with El Niño, the periodic climate anomaly that causes unusually warm waters in the equatorial Pacific, and huge surf off of Oahu.

A weaker version of this cycle occurred in 2004, while 2010’s was particularly strong, as this year’s is shaping up to be.

Because they’re seen so rarely, the petroglyphs do not seem to have been the subject of very thorough study.

They were reportedly first documented by archaeologists in 1970, and new ones have been identified as recently as 1983. [Read about recent rock-art research in the Southwest: “Ancient Rock Art in Texas Yields ‘Surprising’ New Finds“]

Petroglyph on North Shore of Oahu, Hawaii
The field of petroglyphs revealed on Oahu contains at least 70 images. (Photo by Donna Ching/Historic Hawaii Foundation)

But previous research into Hawaiian petroglyphs, known locally as kii pohaku, has suggested that such carvings were used to document travels around and among the islands, to commemorate important events, and to mark trails and boundaries.

At Pu’u Loa, a vast field of more than 23,000 petroglyphs on Hawaii’s Big Island, many of the motifs are notable for featuring holes in which Native Hawaiians deposited the umbilical cords of newborn babies.

Back on O’ahu, depictions of dogs are particularly prevalent.

In addition to those newly exposed on the North Shore, canines appear often at the Nu’uanu rock art site near Honolulu, where they have been said to depict a wicked, cannibalistic dog-like beast known as Kaupe.

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  1. […] Monster Surf Exposes Rare Petroglyphs in Hawaii […]

  2. […] Monster Surf Exposes Rare Petroglyphs in Hawaii | Western Digs Quote: […]

  3. atanu nath

    So how old are those petroglyfs ? I mean those were drawn of course by people when there was no water there. So is it possible to approximately date those by knowing ancient climate ?

  4. Petroglyphs | Pearltrees

    […] Monster Surf Exposes Rare Petroglyphs in Hawaii […]

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  6. […] Over 70 ancient petroglyphs have been exposed by monster surf on the Hawaiian island of Oahu. […]

  7. […] Rare petroglyphs uncovered in the bench of lava at Pupukea Beach, Hawaii […]

  8. […] Tekst na podstawie komunikatu prasowego w serwisie Western Digs […]

  9. Cyn

    I believe there are more petroglyph out there on the west side from Ko’olina resort all the way down to yokahama’s. Because of the high surf every year! I have found many but all in pieces. Very hard to see. Also found many little figurines that I believe our native Hawaiian Keiki designed out of pieces of wet clay found in the oceans of the Hawaiian Islands across the rough edges of there stored deep inside the reefs. Here,’ a few pictures.

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