Stayed there about two years ago
A reasonable sized and enough room to get a larger vehicle in and out ( no sure if the resent rain has caused any issues)
We stayed out the back away from the Hall as they had a function on that night
We travelled on the center route to Harwood and found that it was quite narrow in parts but a mighty view of the harbor
Next time I will keep to the bay side road to Portabello
Have you tried the Woodhaugh NZMCA park in the Leith Valley, we find it Great. A moderate walk into town ( and the Bar's) and buses pass the end of the street, Also saw buses at Harwood.