Checked out the Homestead Doc Camp in the Oteake Conservation Park north of St Bathans. Quite a long way up a gravel road to the base of the Hawkdun Range. Probably about 250-300 meters higher or more than Ranfurly according to Topomaps, so quite a bit cooler, with ice in the shady bits staying all day even though the sun was shining.
One of those days that makes it all worthwhile.
Brochure and map about the park here: Doc Map
Fullscreen/HD if you can.