We will be travelling to NZ in three weeks and taking a campervan tour mostly of the South Island. I would like to find a good day hike that is comparable to Helvellyn or the Langdale Pikes in the UK Lake District. I've looked at the DOC website and there are lots of hikes listed. I've also looked at some NZ hiking websites with lots of hikes, but with no local knowledge, it's difficult to determine whether or not a particular hike is what I am looking for.
I can do either a point-to-point or a circular hike, although a point-to-point would be preferable. A moderate to difficult hike over 10-12 miles would be good. I'd like somewhere with spectacular vistas so I can take some photo's.