Rangitata River - An awesome short Gorge section, super fun to walk back up and repeat. When low the rapids are pool drop with sticky holes and fun boots. When is high, it is continuos and is certainly big volume paddling. Don't be fooled by low water, the easest flow is between 100cms and 120cms. You can paddle it as Low or high as you can handle. (above 200cms is scary in my books)