While most designers aim to gently blur the line between interior and exterior spaces, subtly transitioning guests from aft deck to main salon, Ivana Porfiri instead takes pains to signal the difference with angled aluminum screens and LED lights. Once past, a guest aboard Nina J is ensconced in a new world of relaxation and sensory delight. Playful ponytail rugs, walls of living, misted plants, and disappearing doors and walls form the vocabulary for this dramatic departure from everything that has gone before. A TV monitor in the floor plays a loop of sea scenes just at the point where stairs descend to the lower deck. The effect is brilliant and seductive. In the master suite, the typical demarcation between bedroom and bathroom is blurred, as is the line between bedroom and sea when windows roll away and the walls fold outward to become diving platforms. In her playfulness, Nina J reminds us why we run away to sea.