Update 4 Feb 2020: Detached mats of toxic algae at Jim Cooke Park

Toxic algae levels have increased at Jim Cook Park. Detached mats of toxic algae are still being observed along the riverside as well. 

We recommend you avoid swimming and keep dogs on leads & away from the river at all times as toxic algae represents a very real risk to human and animal health.

To remind yourself what toxic algae looks like see http://www.gw.govt.nz/is-it-safe-to-swim/