Clubs are typically divided into "on-premise" clubs, where sexual activity may happen then and there at the club, and "off-premise" clubs where sexual activity is not allowed at the club, but may be arranged at a near-by location.
The phenomenon (or at least its wider discussion and practice) may be seen as part of the sexual revolution of recent decades.
This often relegates these activities to suburbia, where bars in large industrial parks which attract a mainstream clientele during weekdays would otherwise sit empty or closed on weekends when offices shut down. There are three standard formats: the bar/nightclub, usually smaller, in city centres and focused around a dance floor; the spa format which has pools, jacuzzis, saunas and steam rooms and where people strip on entry; and the country club format, which is out-of-town, usually serves a free buffet and may include elements of the first two as well as offering large play spaces.History According to Terry Gould's The Lifestyle: A Look at the Erotic Rites of Swingers (ISBN 1552094820), swinging began among U. Air Force pilots and their wives during World War II.
Scientific research into swinging has been conducted in the USA since the late 1960s.
Swingers rate themselves happier (59% against 32% very happy) and their lives much more exciting (76% against 54% exciting) than does the rest of the population, by surprisingly large margins.
There was no difference between the responses of men and women, although more males (70%) than females completed the survey.