We are going on our first cruise this summer on a 4-Day Wonder Cruise and i was hoping for some clarification. I know for dinner its casual and no shorts and jeans but is something like a polo shirt and khakis fine? What should be worn on semi-formal night? I also was wondering about what to wear around the ship, is it okay to walk around in your bathing suit and can you go to lunch with a bathing suit? Any advice would be great! Thanks 
