No, Carnival Cruise Line has a strict zero-tolerance policy regarding firearms and weapons of any kind in 2026. This prohibition applies to all passengers and crew, regardless of whether you have a concealed carry permit or if the firearm is intended for "self-defense." This rule extends to all "look-alike" weapons, including toy guns, BB guns, and even decorative replicas. Upon arrival at the cruise terminal, all luggage is screened via X-ray, and passengers must pass through metal detectors. If a firearm is discovered, it will be confiscated, the passenger will likely be denied boarding without a refund, and local law enforcement will be notified. This is especially critical in 2026 because many international ports of call (such as those in the Caribbean or Mexico) have extremely strict gun laws; bringing a firearm into these jurisdictions, even on a ship, can result in immediate arrest and lengthy imprisonment in a foreign country.