What type of clothes to wear when in Dhow Cruise?

A formal dress code is recommended when going for a Creek Dhow Cruise. Now, there are some rules that you need to keep in mind e.g. Men are not allowed to wear shorts of any kind and the women are advised not to wear clothes that are sleeveless or a dress that reveals too much skin. Any other dress either casual or formal is accepted. On another note, flip-flops and slippers are not allowed.