In 2026, smoking on cruise ships is strictly prohibited in all interior spaces, including staterooms and private balconies, but designated smoking areas are available on the open decks. On Carnival Cruise Line, smoking is typically permitted in a specific section of the casino (only while actively playing) and on a designated side of one of the upper sun decks (usually Deck 11 or 17). Royal Caribbean and Celebrity Cruises follow a similar policy, designating one side of an outdoor deck (often the port or starboard side of the pool deck) as the smoking zone. Violation of these rules in 2026 carries a heavy cleaning fee of $250 to $500 and can lead to disembarkation. This policy also applies to electronic cigarettes and vapes. For 2026 passengers, these areas are clearly marked with signage and provided with ashtrays; the "golden rule" of cruising remains to never throw a cigarette butt overboard, as it is a major fire hazard and environmental violation.