Abstract: A mobile training unit including a transportable cargo container having a transport position and at least one training position, the cargo container including: (a) at least one confined working compartment wholly or substantially within the cargo container dimensions; (b) at least one cargo container wall portion movable between a closed transport position and an open training position; (c) at least one door for entry into and exit from the cargo container; and (d) a tower movable between a transport position within the cargo container dimensions, and a training position extending beyond the cargo container. The mobile training unit in its transport position provides a very convenient unit for easy transportation to different locations where training is necessary or desired. This mobile training unit can at least supply facilities to provide training in relation to confined /enclosed spaces, working at height, fall potential and rescue situations.