The pick of the bunch in Waiorongomai Valley. Low Flow (much more fun after a bit of rain!) Big, continuous waterfalls with the odd gold mining relic.
Top section is accessed via the high level pack track, allow about 1:45-2hrs, or enter at the half way point by climbing to the top of Butlers Incline and following the tram line around to the bridge over Diamond Creek. This bridge can also be used as an easy exit point if your only doing the top half.
When you meet the main Waiorongomai river at the bottom of the canyon follow the rough track immediately over the river, crossing the river once more before joining a well formed track back to the lower level loop walk.