The western section of Waikiki near the Hilton Hawaiian Village
Dukeʻs Beach refers to the Kahanamoku Beach area at the western end of Waikiki, named after Duke Kahanamoku, the father of modern surfing. It fronts the Hilton Hawaiian Village and includes the Duke Kahanamoku Lagoon. Visitors often call it Dukeʻs Beach or Kahanamoku Beach interchangeably.
This section is the closest to the Ala Wai Canal outfall, which is the primary source of bacteria-carrying runoff in the Waikiki area. After any rainfall, this beach tends to see elevated bacteria levels before other Waikiki sections. The Kahanamoku Lagoon has limited water circulation.
The man-made Duke Kahanamoku Lagoon provides calm, sheltered water popular with families and small children. However, the enclosed design limits natural flushing. When advisories are posted for Waikiki, the lagoon can retain contamination longer than the open ocean beach.
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Safe to Swim Hawaii provides water quality information based on publicly available DOH data and seasonal patterns. This is not medical or safety advice. Always check current conditions, obey posted signs, and use your own judgment before entering the ocean. Privacy Policy
⚠️ 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 water quality conditions with the Hawaii DOH Clean Water Branch before entering the water.
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