Kaiaka Bay

Kaiaka Bay is the smaller, quieter bay just west of Haleʻiwa Beach Park, with a state recreation area and reef-protected lagoon — and a BWTF sample point. Check the Community Water Testing section for the sample date, result and full Surfrider report. A sample describes the water collected at that place and time; it does not establish today's water quality. Check the live DOH status above separately.

Kaiaka Bay lies west of Haleʻiwa, beside the Kaiaka Bay State Recreation Area. Nearby stream mouths and the bay's sheltered shoreline are part of its geographic setting.

Distance from a stream mouth and a past sample do not establish current water quality. Check the collection date and source report for the community sample, and current DOH advisories separately.

The Hawaii Department of Health does NOT routinely test Kaiaka Bay. The community-tested readings on this page come from the Surfrider Foundation Blue Water Task Force, a volunteer-led monitoring program run by the Surfrider Oʻahu chapter.

BWTF samples Kaiaka Bay biweekly using the IDEXX Enterolert method (MPN/100mL), and compares results against the same 130 Beach Action Value DOH uses statewide. See our overview of citizen water-quality testing in Hawaiʻi for the methodology and how BWTF data fits with DOH coverage.

Sandy shoreline at Kaiaka Bay State Recreation Area, with stream-mouth areas nearby. Watch for currents around the bay's opening.

Summer mornings before north-shore traffic builds. The bay is quieter and less crowded than Haleʻiwa Beach Park to the east. Family-friendly in summer; winter brings powerful surf to the open coast nearby (Kaiaka itself stays calmer than the open beaches).

Off Haleʻiwa Road just west of Haleʻiwa town. Kaiaka Bay State Recreation Area has parking, restrooms, picnic tables, and camping. About 5 minutes from Haleʻiwa town center.