Holmeswood Terrace went all the way through from Holmes Road to Route 20 at one time. I'm not sure why, but it was closed off just about at the Burger King. This why there is the little street between the BK and Halprin's (now Mazcot's). The coordinates should take you to where the road now ends. The cache should be easy to find from there. An alternate approach is from Holmeswood Terrace via Holmes Road but you will probably attract more attention since you will be in a residential neighborhood.