Come celebrate the first Friday of the month at Southbank’s Testing Grounds with DISPOSABLE artworks Fatberg and Sewer Soaperie. It’s the first Friday of the month again and Testing Grounds is bringing you installations, exhibition openings and performances, including DISPOSABLE artworks Fatberg by UK artists Mike Thompson and Arne Hendricks and The Sewer Soaperie by Catherine Sarah Young. Plus there’s fire pits to keep you warm…