Tributaries of the Otukaikino River provide potential valuable trout spawning reaches. These areas are being enhanced and protected.

Volunteer at Styx River

Join Council rangers in some of our stunning regional parks across the city for community planting days to help with park maintenance.

The Styx Living Laboratory Trust(external link) runs regular working bees focusing on biodiversity monitoring. The Trust was set up in 2002 to develop Styx Mill into a living laboratory focused on learning and research in the Styx River catchment.

What to bring

  • Weather appropriate clothing – layers, rain jacket, hat
  • Sturdy boots or gumboots
  • Gardening gloves
  • Water bottle and snack

Bird monitoring programme(external link)

  • First Saturday of every month, 9am

Meet in the Styx Mill Conservation Reserve car park, off Styx Mill Road.

Bring sturdy outdoor clothing and footwear in case conditions are wet and muddy. If you can, bring a pen and paper, binoculars and a camera/phone.

For more information contact Antony.Shadbolt@ccc.govt.nz.


  Water quality monitoring programme(external link)

  • Third Saturday of every month, 10am

Meet at the Styx Trust laboratory, located inside the Ranger Base at 130 Hussey Road, Harewood.(external link)

Bring sturdy outdoor clothing and footwear in case conditions are wet and muddy. You will be given instructions on how to take water samples, measurements and observations, and be paired with another volunteer.

Register your attendance by emailing styxwq@gmail.com.


Freshwater invertebrate monitoring programme(external link)


Monitoring freshwater invertebrate is important in determining changes in habitat, aquatic plants and invertebrate over time.

This programme was active up until the earthquakes and is currently looking for enthusiastic assistance to get restarted. If you can help, contact the Trust(external link).

Trees for Canterbury @ The Groynes

Join Trees for Canterbury and Christchurch City Council Park Rangers for a family planting event at the Groynes. Our goal is to establish additional native trees and shrubs as part of the ongoing development of the Ōtukaikino River. Since the early 2000s, efforts have been made to restore the Ōtukaikino River that runs through the Groynes, remove pest plants from the lakes and increase native plantings.

The event will be followed by BBQ sausages. Bring along family, friends and a spade if you have one.

Date: Sunday 23 August

Time: 10.30am to 12.30pm

Location: Number two picnic area, Groynes, follow the signs to direct you to the site.

Check the Trees for Canterbury Facebook event(external link) for more information.


Trees for Canterbury @ Horseshoe Lake Reserve

Join Trees for Canterbury and Christchurch City Council Park Rangers for a family planting event at Horseshoe Lake Reserve. Our goal is to establish additional native trees and shrubs. 

The reserve, a natural wetland area noted for its regenerating native bush and wildlife habitat, is a restoration project that is an ongoing partnership between the community, Trees for Canterbury, Avon-Ōtākaro Forest Park, and the Regional Park Rangers of the Christchurch City Council.

Bring along family, friends and a spade.

Date: Saturday 3 October

Time: 10am to 12pm

Location: Horseshoe Lake Reserve, entry to the planting site near the corner of Horseshoe Lake Road and Broomfield Terrace. Signs will direct you to the site. There is plenty of parking on Broomfield Terrace, opposite Burwood Park North.

Check the Trees for Canterbury Facebook event(external link) for more information.