Hello! Al Cornishe was a bit out of our price range but it is a very popular choice here. I live in Salmiya and we are members at the gym that is inside the Holiday Inn. No beach access but it does have a pool, spa, and gym. As far as clothes go you will occasionally see local women in less conservative clothing but I generally stick to skirts/dresses/pants or long skirts that hit right at or just below the knee. I regularly wear tank tops if walking to/from gym but otherwise try to stick to short sleeves or at least wider strapped tops/dresses with a higher neck. I definitely brought clothes with me that I won't be wearing in Kuwait, but there's always vacation!
