Yes, Carnival Cruise Line strictly enforces a 1:00 AM curfew for all minor guests (aged 17 and under) in 2026. Unless they are accompanied by a parent or a responsible adult from their traveling party who is 21 years of age or older, minors must be clear of all public areas and tucked away in their staterooms by one in the morning. This high-value policy is designed to maintain a safe and orderly environment for all passengers and prevent late-night disruptions. In 2026, Carnival has ramped up enforcement; a first violation typically results in a warning letter to the parents, while a second can incur a $500 fine. A third violation is the premier "dealbreaker," potentially leading to the entire family being disembarked at the next port and placed on a permanent "no-sail" list. This mandatory policy ensures that the ship remains a high-quality, family-friendly space even during the late-night hours.