Chester Zoo is a zoo at Upton-by-Chester, Cheshire, England. Chester Zoo was opened in 1931 by George Mottershead and his family. It is one of the UK's largest zoos at 51 hectares (130 acres). The zoo has a total land holding of approximately 160 hectares (400 acres). Chester Zoo is operated by the North of England Zoological Society, a registered charity founded in 1934. The zoo receives no government funding. It is the most-visited wildlife attraction in Britain with more than 2 million visitors in 2019. In 2007 Forbes described it as one of the fifteen best zoos in the world. In 2017, it was named as the best zoo in the UK and third in the world by TripAdvisor.