Hang some DIY crates on the area over the toilet to add some decor. The dried beach dahlias in tiny bubble vases, mason jars filled with candles & bath salts, some driftwood, and a few starfish & shells make your bathroom super fantastic.
Make a poster from your favorite beach photo, or purchase a beach poster (or any outdoor theme you prefer) then frame it with an re-cycled window frame. Makes it appear that you are looking out a window. Love this clever idea!