Frensham Great Pond
Do not swim
The Environment Agency advises against bathing here — an open pollution incident (harmful algae) is affecting this water.
Active notices
Pollution incident: harmful algae
The Environment Agency advises against bathing here — an open pollution incident (harmful algae) is affecting this water.
Official water quality
Classified Excellent in 2025.
Official bathing-water profileCommon questions
- Can you swim at Frensham Great Pond right now?
- Frensham Great Pond is currently marked "Do not swim". The Environment Agency advises against bathing here — an open pollution incident (harmful algae) is affecting this water. This reflects the latest data published by the Environment Agency (England). Conditions change quickly — always assess the water yourself before entering.
- What is the water quality like at Frensham Great Pond?
- the Environment Agency (England) classified Frensham Great Pond as Excellent in 2025. Classifications are a rolling assessment of bacterial samples taken over four bathing seasons, measured against E. coli and intestinal enterococci limits set by the EU Bathing Water Directive.
- Is there a swimming ban or warning at Frensham Great Pond?
- Yes. The Environment Agency advises against bathing here — an open pollution incident (harmful algae) is affecting this water. This notice was published by the Environment Agency (England) and began on 2026-06-19.