dˈʊɹɹɪŋ ðə sˈɛkənd wˈɜːld wˈɔːɹ, ðə lˈaɪdoʊ wʌz sˈiːkɹᵻtli jˈuːzd baɪ ðə ɹˈɔɪəl ˈɛɹ fˈoːɹs tə tɹˈeɪn ˈɛɹkɹuː bˈeɪst æɾ ˌɑːɹɹˌeɪˈɛf nˈɔːɹθoʊlt ænd ˌɑːɹɹˌeɪˈɛf ˈʌksbɹɪdʒ ɪn wˈɔːɾɚ sɚvˈaɪvəl mˈɛθədz.
During the Second World War, the lido was secretly used by the Royal Air Force to train aircrew based at RAF Northolt and RAF Uxbridge in water survival methods.