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OAHU · NORTH SHORE

Malaekahana Beach

Water quality status and bacteria risk rating

📍 Laʻie, North Shore Oʻahu — near Goat Island

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If It Looks Brown, Don't Swim
Never enter the ocean when the water appears brown or murky, even if no advisory is posted. Hawaii is often slow to test beaches and update advisories. After heavy rain, wait at least 72 hours and until the water clears before swimming.
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Historical Bacteria Risk
⚠ Historical rating — based on long-term testing data, not current conditions. Always check the water yourself and avoid brown or murky water.
Low-Moderate Risk 2 / 5

Malaekahana Beach generally has good water quality thanks to its relatively undeveloped surroundings and open ocean flushing. The North Shore lacks the urban runoff sources found in Waikiki, keeping bacteria levels lower on average.

The main water quality risk comes from the Malaekahana Stream, which crosses the beach access area. After heavy rain, this stream can carry bacteria from upland sources. Avoid swimming near the stream mouth for at least 72 hours after significant rainfall.

Based on: DOH beach monitoring, North Shore area data, stream proximity analysis

⚠️ The 72-Hour Rain Rule

The Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. The Malaekahana Stream drains into this beach and can carry bacteria after storms. Always inspect the water visually before entering.

About Malaekahana Beach

Malaekahana State Recreation Area stretches along Oʻahu's North Shore near Laʻie, roughly 35 miles north of Honolulu. It's one of the most family-friendly beaches on the North Shore because the reef provides some protection, creating calmer swimming conditions than nearby Sunset Beach or Waimea Bay — especially in summer.

The beach's signature feature is Goat Island (Mokuʻauia), a small offshore island accessible by wading at low tide. The island is a state bird sanctuary home to nesting seabirds. The crossing is typically knee- to waist-deep, but currents can be present — always check tides before attempting.

Facilities include restrooms, showers, and camping areas. The beach is significantly less crowded than Waikiki or Lanikai, making it a good option for visitors seeking a quieter experience. Winter swells can make swimming dangerous even here, so always observe conditions before entering.

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⚠️ Important Disclaimer

Safe to Swim Hawaii is an independent passion project — not affiliated with the Hawaii Department of Health or any government agency. Water quality ratings are estimates based on publicly available testing data and geographic analysis. They are not real-time measurements and may not reflect current conditions.

Always verify current conditions with the Hawaii Department of Health Clean Water Branch before entering the water.

When in doubt, don't go out. 🤙

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