This unit describes the performance outcomes, skills and knowledge required to navigate in difficult tracked environments during any type of outdoor recreation activity.The unit provides skills to navigate in environments where tracks, natural and constructed features marked on maps may be unreliable. Tracks are generally distinct, but may be indistinct in some places. They have signage at the track head, and have route markers but provide limited signage en route. There may be many natural obstacles and, along with changes in weather and visibility, adjustments to the planned route may be necessary. Tracks could be graded according to the Australian Walking Track Grading System and might include features of grade 4.This unit applies to any type of organisation that delivers outdoor recreation activities including commercial, not-for-profit and government organisations.It applies to leaders, guides or instructors who use these skills when leading participants during activities where navigation skills are required. No occupational licensing, certification or specific legislative requirements apply to this unit at the time of publication.