Yes, that is true. Make sure to read our guide to where people can and cannot smoke on ships: http://cruiseline.com/bonvoyage/before-you-cruise/what-to-know/where-can-people-smoke-on-cruise-ships-
For Royal Caribbean,
Allowed: One side of the ship and the casino. Pipes and cigars are only permitted in the cigar lounge and other designated areas.
Not Allowed: Cabins including balconies, Boardwalk, Central Park, and all other public spaces.
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