Research & Restoration

Swan Lake

The lake is fed by a 12 km^2 watershed that consists of a mixture of agriculture, residential housing, and commercial areas, with impervious surfaces covering 25% of the watershed. Swan Lake in turn flows into Colquitz Creek and subsequently into Portage Inlet, a marine ecosystem connected to Victoria Harbour.

Since the mid-1800s, the lands adjacent to Swan Lake have been cleared and cultivated, and for almost 50 years the lake was used as a dumping ground for winery waste and sewage. These practices have stopped, but the lake is now subject to pollution in the form of runoff from increasing urbanization and agricultural areas. The lake suffers from, among other things, the loss of its native fresh-water fish population, poor water quality, low oxygen and invasive species. Therefore, the Swan Lake Christmas Hill Nature Sanctuary Society is developing a habitat management plan to prioritize and guide long-term restoration over the next 10-15 years. Despite the constraints, the Nature Sanctuary is an accessible green space that showcases the importance and value of urban ecosystem and provides ideal opportunities for teaching and learning about restoration, conservation and biodiversity monitoring.

At the watershed scale, improved best management practices are needed to reduce peak flows and pollution flowing into the streams and lake.

Ongoing restoration projects include:

  • Invasive species removal
  • Reforestation
  • Planting native species
  • Bird habitat improvements

Christmas Hill

Ecological restoration activities have been occurring on the Hill for over 25 years. A Management Plan has been developed to address both the social and ecological aspects of this important parkland. Christmas Hill is almost completely surrounded by residential housing. Although there is currently very little public parking for the Hill, greater numbers of people will visit the Hill due to continued residential densification in the area. Moreover, the likelihood that people will use or treat the Hill in inappropriate ways, from off-trail use to vandalism, will continue to grow and remains a principal threat to the ongoing ecological health of the Hill.

Ongoing Restoration projects include:

  • Removal of invasive species, including certain shrubs and trees
  • Reintroduction of native species
  • Trail construction which prevents foot traffic in sensitive areas

School-Based Weather Station

Atop the Nature House, you may spot something spinning! The Nature House is home to a weather station, which is part of the Vancouver Island School-Based Weather Station Network. Administered through the University of Victoria, this network of over 150 weather stations spread over the south half of Vancouver Island provide a current picture of a wide range of conditions as well as historical data.

Curious about the current weather at the Nature Sanctuary? Visit our weather station's page here!

Weather Station

High atop the Nature House sits a weather station which was installed as part of the UVic School-Based Weather Station Network. It records the temperature, humidity, wind speed, UV Index, precipitation and air pressure.

You can access the information by visiting

Swan Lake Nature House

No current data available.

How to get involved in restoration

Tuesday Crew or Saturday Crew 

Weekly ecosystem restoration from 9-11 am, followed by tea, coffee and cookies! 

Join this fun and friendly environmental restoration crew of volunteers to remove invasive species and act as nature stewards at the Nature Sanctuary.  Restoration volunteers work as a team to remove invasive species, improve trail quality, and protect the ecosystems at Swan Lake and Christmas Hill. 

Adopt A Patch  

In this program, volunteer groups rehabilitate a designated plot of land at the Nature Sanctuary that they steward over time. This program is ideal for families, schools, organizations, or other community service groups as a team building, learning and restoration activity.  Contact for more info. 

Custom Group Restoration Projects 

Make tangible impact on the environment while fostering team spirit and social responsibility. Custom group restoration projects offer community and business organizations a unique chance to engage in meaningful single day restoration projects.  

This individualized program is a pay for fee service. See the decision tree below to find out what works best for you! Contact for more info. 

Ecosystem Restoration Events 

Are you interested in supporting local ecosystems? Come to the Nature Sanctuary and help restore endangered oak and sensitive wetland habitat by removing invasive species alongside staff and other dedicated folks! We will periodically organize drop in restoration. Follow along @ SwanLakeNature to ensure you don't miss out.