I just came back from the Western, but because of Charley, our itinerary changed, so we didn't have the normal routine, but it was scheduled to be formal on Monday, Semi-formal on Thursday, and Mexicali on Wednesday (I think). Our cruise was messed up, but we had all the nights anyway. They also started another theme night - Pirate night, which was alot of fun - everyone dresses as pilates (they supply the hat!)