ISAO
![](https://assets.landscapeontario.com/assets/1706188942.ISA-OTCC-2023-champs.jpg)
Sep 21, 2024
Event
Ontario Tree Climbing Championship 2024
Join ISA Ontario for a FUN, FREE event that includes a climbers showcase, tradeshow featuring industry vendors, educational workshops, and the chance to climb a tree using standard equipment under the guidance of a professional arborist!
![Mackenzie Hordyk (2023 OTCC female champion) competing at the 2023 event. Photo by Ciara Condon.](https://assets.landscapeontario.com/assets/1720715132.Mackenzie-Hordyk-photo-by-Ciara-Condon-web.jpg)
Jul 11, 2024
Ontario Tree Climbing Championship coming to Mississauga
The 34th annual Ontario Tree Climbing Championship (OTCC) will take place Sept. 20-21 at RK McMillan Park in Mississauga, Ont.
![Jeff McMann (left) accepts his award from John Stewart, Past President, ISA Ontario.](https://assets.landscapeontario.com/assets/1583252221.Jeff_mcmann_ISAO_award_2020-web.jpg)
Mar 15, 2020
McMann recognized with Maple Leaf Award
Award presented Feb. 14 at RBC Place in London, Ont.