This app was mentioned in 1 comment, with an average of 1.00 upvote
Get a hold of some NZ Frenzy books (can't remember the name of the author right now, Google it). He does an obscure-o-meter for each entry. Or if you download the 'NZ Travel' app (https://play.google.com/store/apps/details?id=com.spaceships.motorcamps.newzealand.travel) , each entry is pinned on the map (Android only). Campgrounds too. No freedom camping unless you're self contained.
I'm done.