What to know before you go
Reef protects from most north swells, calm conditions but murky after rain
Calm, warm, excellent for children and beginners, windsurfing at west end
| Lifeguards | No |
| Nearest Hospital | Wilcox Medical Center (20 mi) |
| Cell Coverage | Moderate |
| Emergency | Call 911 — Ocean Safety: (808) 723-8170 |
Very low hazard. Mosquitoes can be bad near the camping area. Check tide charts — at low tide the water is too shallow for swimming in many areas.
After heavy rain, bacteria and pollutants from runoff contaminate coastal waters. Wait at least 72 hours after heavy rain and until the water clears before entering. This applies to Anini Beach and every beach in Hawaiʻi.
Reef protection makes conditions calm but also traps debris. Shallow — tide-dependent. Camping area can be crowded. Mosquitoes near ironwood trees.
No. Nearest hospital: Wilcox Medical Center (20 mi). Cell phone coverage: Moderate.
Winter: Reef protects from most north swells, calm conditions but murky after rain. Summer: Calm, warm, excellent for children and beginners, windsurfing at west end
Very low hazard. Mosquitoes can be bad near the camping area. Check tide charts — at low tide the water is too shallow for swimming in many areas.
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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, any entity mentioned on this page, 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 and should not be the sole basis for any swimming decisions.
When in doubt, donʻt go out. 🤙