← All beaches & hotels
MAUI · EAST END · HĀNA AREA

Waioka (Venus Pool)

The freshwater spring pool south of Hāna — with dated Surfrider BWTF community samples

Community Water Testing
The Hawai‘i Department of Health does not run routine bacteria-testing here. The readings below come from the Surfrider Foundation’s volunteer Blue Water Task Force, which fills coverage gaps DOH doesn’t reach.
Community Testing · Surfrider BWTF
Waioka
Last sample 2026-03-09 · view full report →
448 MPN/100mL
exceeds BAV
About: Volunteer water-quality monitoring by the Surfrider Foundation's Blue Water Task Force. Method: IDEXX Enterolert (MPN/100mL). Threshold: 130 MPN/100mL Beach Action Value — matches Hawaii DOH. Sampling: monthly (Kauaʻi/Maui), biweekly (Oʻahu).
Source: Surfrider Foundation Blue Water Task Force · Updated 2026-09-14
Water-quality sources
Check the dated sample
BWTF community testing

Waioka — popularly called Venus Pool — is the freshwater pool just south of Hāna town, fed by a spring and connected to the ocean by a narrow stream. 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.

Why the Readings Run the Way They Do
Pool, watershed and access context

Waioka is a brackish pool south of Hāna, connected to the ocean by a narrow stream. Runoff from the surrounding watershed can reach the pool.

A community bacteria sample describes the collected water at that place and time. It does not establish current conditions or resolve the pool's separate access restrictions; check the dated source report and current DOH notices.

🌧️
After Rain — Wait Times
Light rain: 72 hours minimum, then visually verify the water has cleared.
Moderate rain: 4–7 days.
Storm or Kona low: wait until the water returns to clear blue-green visually. Can take 1–2+ weeks in extreme cases.
Testing Coverage

The Hawaii Department of Health does NOT routinely test Waioka (Venus Pool). 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 Maui chapter.

BWTF samples Waioka (Venus Pool) monthly 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.

Practical Notes
Access Status

Maui County closed Waioka in 2024. The traditional access road and trail cross private land; visiting is now considered trespassing. Multiple recent injuries and a death drove the closure. The BWTF data on this page documents historical readings; do not visit.

If You're Researching the Pool

Access restrictions are separate from the community bacteria sample. If you read other guides recommending Waioka, check their date and current local access information.

Better Alternatives Nearby

For nearby coastal planning, see Hāna Bay and Hāmoa Beach. Each has separate water-quality information; check current advisories, dated samples and access information for the place you intend to visit.

Get Beach Water Quality Alerts

Free alerts when water quality changes at your beach.

No spam. Just safety alerts for your trip.

⚠️ Important Disclaimer

Safe to Swim Hawaii is an independent passion project — not affiliated with the Hawaii Department of Health, the Surfrider Foundation, or any government agency. Bacteria readings on this page come from the Surfrider Blue Water Task Force, a volunteer-led monitoring program. Readings are point-in-time samples; conditions change with weather, runoff, and wave patterns. 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 and BWTF directly before entering the water.

This site does not recommend or advise anyone to swim at any beach. We share publicly available data and geographic analysis so you can make your own informed decisions. By using this site you accept full responsibility for your own safety. See our Terms of Use for full details.

When in doubt, don't go out. 🤙

© 2026 Safe to Swim Hawaii · Independent passion project · safetoswimhawaii@gmail.com