Sandford Parks Lido is one of the largest outdoor swimming pools in the UK, set in four acres of landscaped gardens in Cheltenham. Built in 1935, the Lido consists of a 50-metre main pool (heated to 26°c) and a children's pool and paddling pool (both heated to 30°c). The Lido has been operating as a not-for-profit charitable trust since 1996 and welcomes around 200,000 visitors each year. On site, there is both indoor and outdoor changing facilities, as well as a cafe with plentiful seating both inside and out.