biv·ouac | \ˈbi-və-ˌwak, ˈbiv-ˌwak\
1: a usually temporary encampment under little or no shelter
2: an encampment usually for a night
2: a temporary or casual shelter or lodging
intransitive verb : to take shelter often temporarily
transitive verb : to provide temporary quarters for
A bivouac shelter is any of a variety of improvised camp site or shelter that is usually of a temporary nature, used especially by soldiers, persons engaged in scouting, mountain climbing, and adventuring. A bivouac shelter is colloquially known as a bivy, bivvy, or bivi.
Bivouac Racing is an organization that aim to create fun, family-friendly adventures that focus as much on the bivouac as the event.