For some camping and scenic visit possibilities, have a look at the Department of Conservation webiste (http://www.doc.govt.nz/). There's all the information you should need for the 235 vehicle-accessible campsites on conservation land in downloadable .pdf files. Some campsites are free, some have a nominal fee.Many (most?) farmers in the country will gladly let you camp on their land, as long as you have the courtesy to ask them beforehand.