A man puts his hands on a woman's breasts (over clothing) and leaves them there for a significant amount of time.
In 2 separate scenes, the same woman is shown coming out of a tent in her underwear. Nothing can really be distinguished.
Towards the end, its implied that 4 couples (3 heterosexual, 1 homosexual) all go off to have sex. No acts are shown, but 1 couple is shown in a tent in underwear (implied to be afterwards).
It's implied that a man and woman had sex, as they are in bed together. She gets up and when the camera is on her, she is seen in her bra, the man is shown completely topless.