What is the climax of Winter (Meyer novel)?

In "Winter" by Marissa Meyer, the climax occurs during the confrontation between Winter and Queen Levana. As the tension escalates, Winter's mental state becomes critical, and she must rely on her friends, particularly Jacin, to help her resist Levana's manipulations. This pivotal moment not only tests Winter's resolve but also sets the stage for the final battle against Levana's oppressive rule, culminating in a desperate fight for freedom and survival.