No sex or nudity.
A couple in bathing suits make out, she's in a bikini.
A man tries to force himself on a girl.
A girl takes a shower in front of another girl. She's shown fully nude and most of the side of her breast is shown, with arm placement carefully covering her nipple.
Many teenagers are shown in bathing suits including small bikinis.
A dream sequence with some lesbian touching is shown.
Several more kissing scenes, clothed.