Avon River/Ōtākaro catchment
The Avon River/Ōtākaro flows through the heart of Christchurch, from its spring source in Avonhead to the Avon-Heathcote Estuary/Ihutai. Addington Brook, a key tributary, flows into the river
https://www.ecan.govt.nz/your-region/your-environment/water/whats-happening-in-my-water-zone/christchurch-west-melton-water-zone/local-projects-and-priorities/avon-riverotakaro