see page 442 of the guidebook
Category: 0 Star Canyons
Canyons which might be worth a look if you happen to be in the area and have done everything else nearby.
Dugga Dugga Canyon v4a2IV
It hosts some nice abseils and slides but not enough to make it a noteworthy canyon.
Jonno’s Canyon v3a2III
More features than maybe you’d think, but not really worth the effort to descend. First known descent in 2017, followed by a series of descents by people thinking they were the first explorer. ;0) A good reason to put up canyons even if they aren’t fantastic, so others can explore elsewhere!
Makahikatoa Canyon v1a3II
Most of a day and lot of effort for a really beautiful but very short section of gorge. Mt Ruapehu, Central North Island