Freshwater

The Ōhau channel diversion wall divides the water in Lake Rotorua from the cleaner waters of Lake Rotoiti, but large holes in the wall's side have locals sounding alarm bells.

Lake Hāwea residents are alarmed by a power company proposal that could dramatically lower their local shoreline.

Northland's largest wetland has suffered significant damage to an area the size of 54 rugby fields after a landowner allowed livestock to enter, sprayed pesticides and illegally installed drains.