The study deals with changes of the Prague summer in four peiods. During the last quarter of a century of the Austro-Hungarian Empire, Prague changed into a modern city with spas, swimming pools and public green spaces, although the Prague summer itself was bound by numerous social conventions and was strongly socially structured.
In the democratic interwar period Prague swimming pools changed into new social centres where even more bashful women went. During the Second World War Prague became the place for Czech vacations.
During the time after the Second World War, society was becoming proletarian. Concurrent with its egalitarianism was also the centrally directed and controlled mass vacation throungh specialized organizations.