Travel irons are a BIG no-no onboard a cruise ship. Having spent the last 20+ years as a firefighter, I can personally attest to MANY house fires being started by numerous heat generating appliances, especially irons. A travel iron, or any iron, has a large flat surface that reach extremely high degress and fire onboard a cruise ship, or any ship for that matter, is the single most serious emergency event that could happen onboard. The fire onboard the Star Princess in 2006 in which a passenger died was attributed to a single smoldering cigerette discarded by a passenger. Fire is very serious onboard a cruise ship and all the cruiselines error on the side of safety and forbid all heat generating appliances onboard by passengers, and that is a GOOD policy!