Water quality, conditions, and what to know before you go
Hanauma Bay is a protected Marine Life Conservation District. Surfing is not permitted inside the bay. The outer reef occasionally breaks but is not accessible for surfing. This is a snorkeling-only destination.
Minimal waves inside the bay due to the protected reef. Occasional south swells can create small waves at the bay entrance. Surfboards and boogie boards are not allowed.
While surfing is not permitted, the enclosed bay shape means bacteria concentrates after rain. The hillside runoff collects in the bay. Not relevant for surfing but important context.
The Hawaii Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. This applies to all ocean activities including surfing. Runoff carries bacteria from land into nearshore waters.
When conditions are clear, Hanauma Bay has great options for surfing. Check the water quality above, then book with confidence.
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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.
When in doubt, don't go out. 🤙