What is the moral climax of Huck Finn?

What do you consider to be the moral climax of Mark Twain's novel, The Adventures of Huckleberry Finn? Is it the moment when Huck decides to defy society's norms and help Jim escape slavery, despite the personal risks and societal consequences? Or do you see it as the moment when Huck's conscience is truly tested, as he grapples with the moral dilemma of whether to turn Jim in for a reward or to remain true to his own sense of right and wrong? Can you elaborate on your perspective and how this moment serves as a turning point in Huck's character development?