Same North Shore property; historical risk estimates and current DOH notices below
The 3/5 ratings below are historical estimates. Check current notices above for the named beach and posted signs before entering the water.
Beach: Hanalei Bay (Puʻu Poa Beach section)
1 Hotel Hanalei Bay overlooks the bay's Puʻu Poa Beach section. Hanalei Bay has an impaired-water history linked to elevated bacteria and Hanalei River runoff. The 3/5 risk estimate is historical; rain can change conditions, so check current named DOH notices and posted signs.
Beach: Hanalei Bay (Puʻu Poa Beach section)
The former St. Regis Princeville is now 1 Hotel Hanalei Bay at the same location. The historical risk estimate is the same for both names; current conditions depend on the named beach and current DOH notices.
These are the same property — the St. Regis Princeville was rebranded as 1 Hotel Hanalei Bay. Both names refer to the same location overlooking Hanalei Bay. The bay's historical bacteria risk estimate is 3/5, reflecting its Hanalei River context; it does not describe current conditions at Puʻu Poa or Waioli Beach. The bay has an impaired-water history, and rain can change conditions. Check the current named DOH notices above and posted signs before planning a beach visit.
Water quality risk ratings are based on publicly available data from the Hawaii Department of Health Clean Water Branch, EPA impaired waters database, USGS stream monitoring data, and geographic analysis of pollution sources (streams, cesspools, storm drains). Ratings are estimates and may change with conditions.
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⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent project not affiliated with any hotel, resort, or the Hawaii DOH. Water quality ratings are estimates based on publicly available data — not real-time measurements.
Always verify conditions with the Hawaii DOH Clean Water Branch before swimming.
This site does not recommend or advise anyone to swim at any beach. We share government data and geographic analysis so you can make your own informed decisions. By using this site you accept full responsibility for your own safety. See our Terms of Use for full details.
When in doubt, don't go out. 🤙