Swimsuits as casual clothing has been partially explored in the form of body suits. You know:
But we're going to talk wearing actual swimsuits casually. Not just the regular unembellished kind with a simple print. But the fancier swimsuits you'll probably have to go estate sale shopping to find. They look great with skirts and short shorts, providing an outfit that's actually waterproof.
Take it to the next level by getting a fancy matching hat, and wearing it on top of a cute swim cap like a tight beanie.
Don't be afraid to accessorize with a nice umbrella. This is the perfect sort of aesthetic for a bucket purse.