Vietnamese man entering tunnel, Chu Chi tunnels, Vietnam, Indochina, Southeast Asia, Asia

achievement asia chu chi tunnels color image contemporary cover covering day descending difficulty discovery displaying doorway effort entering enthusiasm food and drink holding indochina leaf lifting man mid adult narrow one person only men outdoors people photography portrait sinking smiling southeast asia tourist attraction tradition travel travel destinations tunnel vertical vietnam vietnamese vulnerability accomplishment asian color colour cultural culture custom daytime descend display eagerness enclosing enter entrance exertion exhibiting food hardship helplessness hold lid lift male nourishment one outside person picking up plant portraiture smile south east asia