To reach their homes, residents of Bay Terrace — east of Lawtonwood and west of Land’s End at the northern tip of Magnolia — must drive through Discovery Park. Within the park, their street (the narrow neighborhood only has one) is known as Bay Terrace Road, but changes to 42nd Avenue W north of the park boundary. Similarly to Lawtonwood Road, it does not appear to have been officially so designated until 2007, when ordinance 122503 was passed. Also similarly to Lawtonwood Road, it carries no directional designation, since it is a park boulevard.
Bay Terrace Road runs ¼ mile north from Lawtonwood Road just west of 40th Avenue W, and then becomes 42nd Avenue W, which continues on for another ⅕ of a mile to a viewpoint overlooking Shilshole Bay.