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 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.

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