The onboard dress code varies for each restaurant, but you can easily break it down into Beachwear, Casual and Smart. The first is a come-as-you-are affair, so bikinis and trunks get the thumbs up, but please wear something on your feet for safety reasons. Casual, meanwhile, speaks for itself ; we;re talking tops and shorts or a sundress. Then you;ve got Smart, which is when you;ll need to dress up a little bit. You can wear shirts or polo-shirts, trousers or tailored shorts, skirts or dresses, smart trainers, shoes or sandals, but we ask that you leave sportswear, flip-flops and non-tailored shorts in your cabin. If you want to add a jacket or a tie, that;s completely up to you, but our Dress to Impress nights give you the chance to get really suited and booted. To find out which restaurants have which dress code, check out the dining facilities on each of our ship pages' Marella Cruises | New Name, Same Friendly Welcome (tui.co.uk)