Revellers rushed to take to the water in a wildlife haven in Hampstead Heath (pictured), as well as defying no-swimming warnings at London lidos including Ruislip and Parliament Hill.

Hundreds of revellers were seen splashing, wading through the water, and throwing balls as the protected birds and cygnets waddled nearby.

Hundreds of revellers descended upon the Model Boating Pond in north London on Wednesday, which is supposed to be a 'no swimming zone' and safe haven for nesting birds.

While cold water might look refreshing, it can pose 'serious risks', scientists have warned.

Revellers rushed to take to the water in a wildlife haven in Hampstead Heath (pictured), as well as defying no-swimming warnings at London lidos including Ruislip and Parliament…

Revellers rushed to take to the water in a wildlife haven in Hampstead Heath (pictured), as well as defying no-swimming warnings at London lidos including Ruislip and Parliament…

Several beaches across the UK, including Brighton, Bournemouth and Cromer, were left in a mess after a hectic bank holiday weekend and heatwave.

In Broadstairs, Kent, hundreds of youths 'ambushed' Viking Bay Beach where they played loud music, drank and partied until police turned up to disperse them.

Dozens of revellers were filmed splashing, carelessly throwing balls and performing somersaults at the Model Boating Pond this week, which is supposed to be a safe haven for birds.