Lido (swimming pool)

On a cruise ship or ocean liner, the lido deck features outdoor pools and related facilities.

The term probably made its way into English via "Lansbury's Lido", a nickname used in the British press for London's Serpentine bathing place.

[2] The bathing place was revamped in 1930 as a project of the Labour First Commissioner for Works, George Lansbury, a plaque to whom appears on the Serpentine pavilion to this day.

The re-opening garnered significant press attention as a result of Lansbury's introduction of "mixed" bathing.

[4] The nickname "Lansbury's Lido" was probably also ironic, given the contrast between the glamour of Venice and the relative squalor of interwar London — not to mention the latter's variable weather.