Lizziekris

We have booked the 5 day cruise on the Nieuw Amsterdam for December 18th. When looking at the Navigator App, it says every night is Smart Casual. We are fine with this, but I don’t want a surprise and not pack formal attire since there are 2 sea days. Has anyone done one of these 5 day cruises in the past? I know they aren’t too common on Holland, but we thought it would be a fun trip before Christmas. Thanks! Beth Almost a 3* on Holland