This unit describes the skills required to navigate using celestial aids, by both day and night, to a destination, within standard tolerances of accuracy, without the use of the normal range of navigation aids.This unit was developed for military personnel required to operate in a remote, deployed operational environment, but is applicable to any individual who is required to navigate using celestial aids. Alternatively, if an approximate position is known relative to a highway, waterway or coast, where either survival or rescue is better effected, the individual will have sufficient skills and knowledge to remain on a constant bearing and estimate distance travelled. The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to.Those undertaking this unit would act autonomously, while performing concrete tasks, in a broad range of contexts which may be highly unpredictable.No licensing, legislative or certification requirements apply to unit at the time of publication.