RadioSaigon the approach hasnt changed much at Manapouri, here is the link:
http://www.aip.net.nz/pdf/NZMO_31.1_44.1.pdf
Id say you would get dizzy on this approach if you had to go missed.
Can you imagine this in a low performance aircraft!
Here is a Twin NDB/DME approach for Dunedin, which actually uses three NDB's if you include the missed approach...
http://www.aip.net.nz/pdf/NZDN_44.1_44.2.pdf