Just spent 3 days in there. Urchin-Waipakahi-Thunderbolt-Motutere-Urchin.
I wasn't hunting but had a look on the tops in the evening for no result. Put one up on the river flats and all the sign seemed to be from the river to a third of the way up.
Beautiful country.
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The bottom picture is of the "shoes" I wore from the Waipakahi out over the Urchin to the car park. They are usually my camp shoes but decided to try them on the walk out as it was so hot.
They weigh 188 grams each and were fine for walking on the tracks, even the steep stuff, but useless for sidling. I was carrying a 14kg pack.