I don’t remember the plot but do have an exact picture of a scene. It’s towards the climax of this romantic flick where the hero dives into a water body and the heroine undresses and follows him. The water is cold and she is kind of shy and asks him to look away while she undress. The whole scene is taking place at night. And when they reach across the water body, they kiss. That’s all I can remember guys. The movie is not an old one and most definitely in the 2010s. Both the characters are in their teenage years.