A Question for the UK Contributors

[CruznRagtop]

I am booked on a long cruise with Cruise and Maritime Voyages on the Marco Polo, and while I have cruised on the Marco Polo some years ago, I have never before cruised with CMV.  I am getting confused about their dress code:  What would a lady wear on an "informal night," and what would she wear on a "semi formal night?"

 

In the past I have had experience with smart casual, informal, and formal nights on Holland America ships, but I don't know if "informal night" on CMV ships is the same as "smart casual" or "informal" on HAL!

 

Thank you in advance for any pointers anyone may care to share.