In 1778, during his third mapping voyage, James Cook described the homes he saw at Nootka Sound as not having a door. He described irregular openings through which the Indians passed in and out. The "Old Man House" had a maze "consisting of a series of parallel walls partly uncovering each other, around which the visitor had to pass." The maze ended in a dark area that housed the fire pit. One explanation for this configuration was as a defense against intruders. Alternately, because the lack of doors and the cedar mat room dividers did little to keep the wind and rain out, the mats may have served as windbreaks.