Friends of Petrie Island

The Friends of Petrie Island are a volunteer, nonprofit group formed in 1998 to ensure that the islands are managed in an environmentally sound manner.  Under an agreement with the City of Ottawa, the group maintains the walking trails and picnic area and operates the Nature Interpretive Centre, as well as providing excellent and affordable educational day programs for youth.  Wednesday volunteer workdays are from April until October. New volunteers are always welcome along with impromptu clean-ups when you visit.  Garbage bags are available in the centre – just tell us where you’ve cleaned up! Please contact for more information. Membership is $10 for individuals, $25 for families. Donations are always appreciated.  They can be made on the island at the Nature Centre (when it is open) or sent to the Chair of FOPI (address is at the bottom of the Membership page).  Thank you for your support!

Drone Flyover of Petrie Island

by Tom Seguin 


  • Junior Naturalist program, (ages 2 – 5),  approximately 2 hours
  • Youth  programs (ages 7 – 12),  approximately 2 hours

Runs until August 20th.  More details can be found on the Children’s Nature Program webpage. For information contact:

The Nature centre can be opened anytime during the season, (May 1 to end of Sept)  for interested groups.  It is normally open daily from Victoria weekend till Labour Day, 10 to  8 p.m. and on weekends from early May to Thanksgiving.

Tours of the Island are available for Youth groups, Seniors, Home Schoolers  – approximately ½ hour to 1 ½ hours. For inquiries re: opening up the nature centre or for arranging a tour please contact us at:

Event details can be found on the Events page and will be updated when more information is available.

Visitor-contributed Photos on Website

We welcome photographs provided by visitors to Petrie Island.  We can now offer to publish them on our website.  Click here to visit the contributed photos page.  The first album contains instructions on how to submit photos.  If it all seems like too much work for you, just email your photos and we will do all the work for you.

2015 Water Quality

Using the water quality statistics provided by the City of Ottawa, we show below the number of days for which the beach was officially closed.  We also show the number of days on which the E. coli count exceeded 100.  This is not the same as when the beaches are officially closed, which is 200 counts.

For water quality statistics from previous years, click here.

Beach Red Flag Days Days over 100 E. coli
Britannia 7 6
Mooneys Bay 4 4
Westboro 7 8
Petrie Island River Beach 7 10
Petrie Island East Beach 5 7


 Friends of Petrie Island Donor 2015:


 17 Tristan Court  – Website Link

                         Get Involved

Want to know more about FOPI membership and volunteering? Find out more here: Get Involved

          2015 Nature Tour Series

Join us for a nature tour this year (May until October)!  Tour dates and descriptions cam be found here: 2015 Nature Tours

                    What’s Blooming?


Common Boneset (Eupatorium perfoliatum)


Joe Pye Weed (Eupatorium purpureum) 


A class of third year Environmental Science students from Carleton University came out to Petrie last Friday to learn about invasive species and helped us cut down Buckthorn.

Here's a picture of half the class (with their teacher Jesse Vermaire) and the pile of Buckthorn after their work (they took out a bunch of tall thorny trees and other shrubby ones along Basswood trail!). The other half of the class worked up on Bill Holland trail.

Great work and thanks so much for your help!
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Final flowers & berries on the island:

Winterberry Holly (Ilex verticillata)
Butter and Eggs (Linaria vulgaris)
New England Aster (Symphyotrichum novae-angliae)
Canada Thistle (Cirsium arvense)
Common Evening Primrose (Oenothera biennis)
Flat-topped Aster (Doellingeria umbellata)
Jack In the Pulpit (Arisaema triphyllum)
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Great crisp Autumn Day - join us at Petrie Island for our last Nature Walk on Aquatic Plants!

$10 individual, $20 family

90 min to 2 hour walk in the beautiful Grandmaitre Ecological Reserve on Petrie Island (Trim Road, Orleans)
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Our Last Nature Walk of the Year!

Really excited for this one! Let's learn about aquatic plants and their ecosystems! Great walk led by Carleton University professor.

Join us next Saturday, October 3rd at 1 pm. (Don't forget to register!)
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Nature Walk - Aquatic Plants of Petrie Island with Jesse Vermaire

October 3, 2015, 1:00pm

Petrie Island Nature Interpretation Centre

Plants growing in our lakes and rivers are often overlooked by naturalists but they play an important part in aquatic ecosystems by, providing habitat for fish and other animals, removing sediment and contaminants from the water, and helping maintain healthy lake and river ecosystems. In some cases though too much plant growth can be a nuisance to both humans and aquatic ecosystems. Come learn about the diversity of aquatic plants at Petrie Island and how these plant communities help shape the diversity of fish and other animals found in lakes and rivers. Registration through email is REQUIRED - DO NOT register on this Facebook page. Thanks so much! LIMITED SPOTS FOR ALL TOURS. Tour Price: – FOPI Member prices: $7 (individual) $15 (family) – Non-member prices: $10 (individual) $20 (family) Registration information here:

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We gratefully acknowledge funding from the Ontario Trillium Foundation