West Coast Swing is a linear partner dance, with technique centred around 6 and 8 beat patterns, and weight change footwork. It is danced to a wide variety of music.
It is characterised by a distinctive elastic look that results from its basic extension-compression technique of partner connection, and is danced primarily in a slotted area on the dance floor. The dance allows for both partners to improvise steps while dancing together.
West Coast Swing dance (WCS) and the dancers (westies, as we are genially known) are governed by World Swing Dance Council - http://www.swingdancecouncil.com/