Hampstead Heath on Twitter: "Water quality has been impacted by storm water and foul water sewers surcharging in the vicinity of the Ponds following the storm earlier this week. To avoid illness
People sunbathing at the Hampstead Heath mixed swimming pond in London UK Stock Photo - Alamy
MIXED POND ASSOCIATION - Mixed Pond Asssociation
Swimmers at the Mixed Bathing Pond on Hampstead Heath London Stock Photo - Alamy
It's a wonderful privilege': swimmers return to Hampstead Heath ponds | Swimming | The Guardian