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
16- 🏊 Swimming (Less than 30 min) on 16/08/2026 · no symptoms
- 🌊 Open-water swimming (30 min to 1 h) on 16/08/2026 · symptoms on 16/08/2026🟠 Moderate💫 Dizziness🤢 Nausea👃 Throat / nose irritation
- 🏊 Swimming (1 h to 3 h) on 14/08/2026 · symptoms on 14/08/2026🟠 Moderate🤮 Digestive problems (gastro)👁️ Irritated eyes🫁 Breathing difficulty
- 🚶 Walk along the seashore (1 h to 3 h) on 13/08/2026 · symptoms on 13/08/2026🟠 Moderate👃 Throat / nose irritation🫁 Breathing difficulty💪 Muscle aches
- 🌊 Open-water swimming (More than 3 h) on 11/08/2026 · no symptoms
- 🏊 Swimming (1 h to 3 h) on 09/08/2026 · symptoms on 09/08/2026🟢 Mild🤢 Nausea🤮 Digestive problems (gastro)
- 🌊 Open-water swimming (1 h to 3 h) on 06/08/2026 · no symptoms
- 🤿 Diving (30 min to 1 h) on 05/08/2026 · symptoms on 05/08/2026🟢 Mild💫 Dizziness😷 Cough
- 🚶 Walk along the seashore (30 min to 1 h) on 02/08/2026 · symptoms on 04/08/2026🔴 Severe🩹 Skin irritation👃 Throat / nose irritation💫 Dizziness
- 🏊 Swimming (30 min to 1 h) on 01/08/2026 · symptoms on 02/08/2026🟠 Moderate💪 Muscle aches🤕 Headache💫 Dizziness
- 🏊 Swimming (More than 3 h) on 01/08/2026 · symptoms on 01/08/2026🟢 Mild🤮 Digestive problems (gastro)🩹 Skin irritation
- 🌊 Open-water swimming (Less than 30 min) on 28/07/2026 · symptoms on 28/07/2026🟢 Mild🩹 Skin irritation🌡️ Fever / chills
- 🏊 Swimming (More than 3 h) on 26/07/2026 · symptoms on 26/07/2026🔴 Severe🤢 Nausea😷 Cough
- 🏄 Surfing (1 h to 3 h) on 12/07/2026 · symptoms on 12/07/2026🟢 Mild👃 Throat / nose irritation
- 🏊 Swimming (30 min to 1 h) on 12/07/2026 · no symptoms
- 🏊 Swimming (1 h to 3 h) on 10/07/2026 · no symptoms
Testimonials are anonymous and shown after moderation. Correlation does not imply causation.
Full sampling history
| Sample | Result | Cells/L | siamensis | ovata | Temp. | Status |
|---|---|---|---|---|---|---|
| 02/07/2026 | 03/07/2026 | 440 | 0% | 100% | 23.1°C | Low |
| 30/06/2026 | 01/07/2026 | < 40 | 6% | 94% | 23.4°C | Undetectable |
The beach
Tides, daylight and practical information — unrelated to water quality.
Practical information
1460 m of beach
Nearby
🅿️ Car park🚻 Toilets🚿 Showers🚰 Drinking water🍽️ Food and drink🏄 Surf school
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.