Erretegia — Bidart
Water quality
Monitoring of the Ostreopsis micro-algae: samples, history and reports.
Concentration trends
Logarithmic scale. Zero values and "below detection threshold" values cannot be plotted on this scale (see the full table below). Dark red dots indicate a beach closure.
Approved testimonials
4- 🏊 Swimming (1 h to 3 h) on 21/07/2026 · symptoms on 21/07/2026🟠 Moderate👃 Throat / nose irritation😷 Cough
- 🏊 Swimming (1 h to 3 h) on 21/07/2026 · symptoms on 21/07/2026🟠 Moderate👃 Throat / nose irritation
- 🏊 Swimming (1 h to 3 h) on 21/07/2026 · symptoms on 21/07/2026🟠 Moderate😷 Cough
- 🌊 Open-water swimming (1 h to 3 h) on 16/07/2026 · symptoms on 16/07/2026🟠 Moderate😷 Cough👃 Throat / nose irritation💪 Muscle aches🩹 Skin irritation
Testimonials are anonymous and shown after moderation. Correlation does not imply causation.
Full sampling history
| Sample | Result | Cells/L | siamensis | ovata | Temp. | Status |
|---|
The beach
Tides, daylight and practical information — unrelated to water quality.
Practical information
Plage de sable fin, surveillée en saison. Le cirque d'Erretegia est classé espace naturel sensible.(Description available in French only.)
Nearby
View this beach on OpenStreetMap — General information © OpenStreetMap contributors (ODbL)
Data sources
- Official samples: Communauté d'Agglomération Pays Basque (CAPB) — the only ones used for status and closures.
- Tides: Open-Meteo forecasts (indicative).
- General beach information: OpenStreetMap contributors (ODbL) — may be incomplete or out of date.