Extinction map of the Cha I cloud created with the adaptive grid method described in Sect. 3.2. The kinematic members identified in Paper I are overplotted as red circles. The objects finally selected as probable and possible members of the moving groups after the SED analysis are marked as blue squares and diamonds, respectively, and the rest of kinematical candidates selected on the basis of proper motions and colours are indicated as blue stars (see Sect. 4 for details).