In 2026, most major cruise lines, including Royal Caribbean, Carnival, and Norwegian, have implemented much stricter rules regarding wagon strollers (like the Wonderfold or Keenz). Generally, these oversized wagons are prohibited as they are considered a "shared-space" problem and a safety hazard in the ship's narrow corridors. They often do not fit through standard stateroom doors and can block emergency exit paths if left in hallways. However, Disney Cruise Line and some others may permit "collapsible" wagons that function more like a traditional stroller, provided they can be folded and stored completely inside your cabin. If you bring a wagon that does not meet the "collapsible stroller" criteria, security at the terminal may flag it as "contraband" and hold it until the end of the voyage. For a smooth 2026 cruise, it is highly recommended to use a standard "compact" or "umbrella" stroller that can be easily folded and stored under the bed, as cruise ships are increasingly prioritizing corridor clearance and safety protocols.