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KAUAI · EAST SIDE

Lydgate Beach Park

Water quality status and bacteria risk rating

📍 East side Kauaʻi near Wailua, about 10 min from Lihue

Checking live advisories…
If It Looks Brown, Don't Swim
Never enter the ocean when the water appears brown or murky, even if no advisory is posted. Hawaii is often slow to test beaches and update advisories — not every beach is monitored. After heavy rain, wait at least 72 hours and until the water clears before swimming.
Learn more about brown water advisories →
Historical Bacteria Risk
⚠ Historical rating — this is based on long-term testing data, not current conditions. The state of Hawaii is often slow to test beaches and update advisories. Always check the water yourself and avoid brown or murky water.
Moderate-Low Risk 2 / 5

Lydgate Beach Park has generally good water quality. The protected rock-walled swimming ponds provide calmer water than the open coast and are a favorite for families with young children. The nearby Wailua River mouth can bring freshwater runoff after rain, which is the main water quality concern.

During dry weather, water quality in the swimming ponds is typically good. After storms, the Wailua River can discharge sediment and bacteria into the area. The ponds may also trap some runoff water. Lydgate is one of the most popular family beaches on Kauaʻi, with lifeguards, restrooms, and a large playground.

Based on: DOH monitoring data, Wailua River proximity, protected pond design, east side rainfall patterns

⚠️ The 72-Hour Rain Rule

The Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. At Lydgate Beach, the Wailua River can push runoff into the swimming area after storms. The protected ponds may take longer to flush than open coast beaches. Wait for the water to clear before swimming.

Lydgate Beach Area Hotels — Historical Beach Water Quality
🏨 Hilton Garden Inn Kauaʻi
Wailua, walking distance to Lydgate
Low-Mod
🏨 Kauaʻi Shores Hotel
Kapaʻa, 10 min drive north
Low-Mod
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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 or any government agency. 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. “No DOH Alerts” means no advisory is currently posted — it does not mean the water was tested and found safe. DOH only monitors a fraction of Hawaii’s beaches, and some areas have no regular testing at all.

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.

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