A pulsating amalgamation of horse and rider, in one being. The rider has no legs, and the arms reach the floor. Upon the head is nothing but one large eye, burning like a dark red flickering fame. The horse has fins on each leg, aiding in water travel. The nuckelavee has a muscular body with no skin, and black blood flowing threw yellow sickened veins. It's long black claws, infested with disease, are the last thing it's victims notice.
A lake, pond, or coast, rarely seen.