A short scene involves soldiers being given a talk on how to avoid sexual disease while off duty. The dialogue is not particularly explicit, making reference to 'horizontal refreshment'. A diagram of a male sexual organ is shown very briefly (intended for humorous effect).
Off duty soldiers in a bar look at black & white images of female nudity. This scene is not lengthy but there is enough screen time given to make out full frontal nudity in some of the pictures, as well as naked rear ends of another, which seems to be for comedy. The same soldiers then visit a brothel and see several prostitutes wearing revealing clothing, some with no bras. One prostitute lifts up her skirt and shows one side of her butt while another prostitute rubs it with a leather stick. It is implied that the soldiers accept the offer being made by these women and enter the room to have sexual intercourse (none is shown). One character questions the morality of their actions.
A number of soldiers, including the two main characters, swim naked at a beach. We see several of their bare butts and very brief glimpses of full frontal nudity as they run and swim in the ocean.