Indoors in a bedroom, fiancé gets frisky with his fiancée as she stands in her underwear changing. He fondles her genitals, buries his face and removes her tampon. He lays her down on the bed, and sex is implied. Later that evening, they lie together on their bed, moving rhythmically and panting, implying sex; lighting doesn't allow for further detail.
At a campfire at night after her fiancé has gone to bed, fiancée ends up talking with their trail guide. He asks if he can kiss her and they end up having a passionate kiss. Lying back, he begins to fondle her but she breaks it off suddenly and joins her fiancé. Her fiancé then becomes amorous but she suddenly gets nauseated and leaves the tent. No nudity.
As engaged couple lays in their tent, woman becomes frisky and clearly fondles his genitals over and over as he resists. He tells her their trail guide is too close to their tent and he doesn't want to be overheard. No nudity.
The film opens showing female full frontal nudity in a shower. Female bare buttocks are seen at night as a woman urinates on the ground. Woman is seen in bra and panties briefly. Men are seen outdoors wearing just briefs.