Honolulu Ocean Safety lifeguards confirmed a non-aggressive, six-foot shark cruising near Three Tables at Pupukea on Oahu's North Shore, prompting crews to post warning signs along the popular snorkeling beach. An HNL Alert about the shark went out at 1:25 p.m. Wednesday, advising beachgoers to check with a lifeguard for the latest ocean and beach conditions before entering the water.
The sighting was first reported by the Honolulu Star-Advertiser, which noted the shark's species remains unknown. The alert also instructed anyone who sees or encounters a shark to notify ocean safety personnel or call 911 immediately.
Standard Protocol for a Routine Sighting
Under standard Honolulu Ocean Safety protocols, red warning signs go up along the beach and the area gets monitored for two hours before lifeguards reassess ocean conditions, according to the Honolulu Star-Advertiser's Facebook page. That timeframe applies specifically to non-aggressive sightings where no attack or injury has occurred, which is the case at Three Tables.
Three Tables sits inside the Pūpūkea Marine Life Conservation District, a protected marine sanctuary established in 1983 that stretches along the North Shore shoreline from the Wananapaoa Islets at Waimea Bay to Kulalua Point, per the Hawaii Department of Land and Natural Resources. The protection covers offshore waters at both Three Tables and neighboring Shark's Cove. Known in Hawaiian as Kalua o māua, Three Tables gets its name from three flat, table-like reef ledges visible at low tide that form a shallow inner cove averaging 15 feet deep before dropping to 30 to 45 feet outside the reef, the department notes, which helps explain why the spot draws so many snorkelers in the first place.
Why Late Summer Brings More Sharks Close to Shore
A 30-year study of Hawaiian shark incidents from 1995 to 2024, published in 2026 by the University of Hawaii Institute of Marine Biology, found that 20 percent of all unprovoked shark bites statewide occur in October, driven largely by pregnant female tiger sharks moving into nearshore waters to give birth. As late summer transitions into fall, sightings like the one at Three Tables become more common along Oahu's coastlines.
Despite that seasonal uptick, the state's records show serious incidents remain rare. Hawaii averages just three to six unprovoked shark bite incidents annually across all islands, keeping individual ocean visitor bite risks at less than one in a million, according to the Hawaii Department of Land and Natural Resources.
A Familiar Pattern Along Oahu's Shorelines
This isn't the first time lifeguards have posted warning signs on the North Shore this year. In December 2025, Honolulu Ocean Safety deployed red-and-yellow warning signs and issued an HNL Alert at neighboring Waimea Bay after confirming a six-foot shark cruising close to the shoreline, as Hoodline reported at the time. Similar short-term advisories have popped up elsewhere on Oahu this year, including for a 10-foot shark at Electric Beach in April and an 8-to-9-foot shark at Kaiser Bowls in Waikiki last September.
The Pūpūkea district has drawn regulatory attention beyond marine life sightings, too. In February, the Hawaii Board of Land and Natural Resources fined commercial dive operator Trident Adventures $10,000 for conducting unpermitted helicopter water drops inside the conservation district, which encompasses Three Tables, Shark's Cove, and Waimea Bay, a case Hoodline covered in its report on the grounded diver drop bid. The district's rules were also updated in August 2021 to incorporate the adjacent Kapoʻo tide pools and ban all marine life feeding inside the protected zone, according to Maui Now.
For Native Hawaiians, sharks, or manō, carry cultural weight beyond public safety bulletins. They are often venerated as ʻaumakua, or family guardian spirits, and traditional oral proverbs such as “Pua ka wiliwili, nanahu ka manō” link seasonal shifts in shark presence to environmental indicators like the blooming of the wiliwili tree, a tradition documented by Maui Now. For now, Honolulu Ocean Safety continues to advise beachgoers at Three Tables to check current conditions with lifeguards before heading into the water.
