Luxury hotel — Water quality near Ala Wai Canal outlet
Prince Waikiki occupies a premium location at the gateway to Waikiki near the Ala Wai Boat Harbor and the Ala Wai Canal outlet — one of the most problematic water quality zones along the Oahu shoreline.
The hotel does not have traditional beachfront access. The closest ocean swimming is at Kahanamoku Beach (a 5–10 minute walk east, at the Hilton Hawaiian Village) or Ala Moana Beach Park (10 minutes west). Neither of these is far from the canal discharge, making this one of the higher-risk areas in Waikiki for bacteria after rain.
On extended dry periods, water quality is generally acceptable. After any significant rain, this section of shoreline should be avoided for at least 72 hours.
Based on: Ala Wai Canal discharge proximity, DOH monitoring data, historical exceedance records at Kahanamoku Beach
The Hawaii Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. Near Prince Waikiki, the Ala Wai Canal discharge makes this rule especially important. Even after the water clears visually, bacteria can remain elevated for days.
When water quality is poor, there are plenty of excellent land-based and offshore activities from Waikiki.
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⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — it is not affiliated with the Hawaii Department of Health, Prince Waikiki, or any government agency or hotel brand. Water quality ratings on this site 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 Department of Health Clean Water Branch before entering the water. This site is for informational purposes only.
When in doubt, don't go out.