Diocese of Hamilton

Catholic Youth Organization

Youth Ministry, Athletics, Camping and so much more...

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we can't wait to hear from you

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New C.Y.O. Video

The Catholic Youth Organization (C.Y.O.) is one of the

oldest, strongest and most effective non-profit

agencies in the Hamilton community...

Welcome to the new C.Y.O. website.


Rent Marydale Park for Only $50.00 an Hour!

For more information on all the fun activities and features Marydale Park has to offer, please contact Karen Hartnett at 905 528-0011, ext. 3602 or karen.hartnett@cyo.on.caRent Marydale Park


75 Years of Smiles, Memories and Adventures in Faith

Website Message - Camp Brebeuf 75th



Camp Marydale WINS again!  Platinum Award for Best Summer Day Camp!


 Readers Choice 2016 - Platinum Winner LogoThe C.Y.O. is thrilled to announce that Camp Marydale was awarded the Hamilton Spectator’s Platinum Readers’ Choice Award for favourite summer day camp…again!

Camp Marydale was the only summer day camp to receive Platinum, the highest level of recognition.  Thank you to everyone who voted and to the 2,800 children and their families who attend Camp Marydale this past summer.  We hope to see you back for summer 2016!




C.Y.O. News

'One-to-One' Campers say Thank you!

‘One-to-One’ Campers say Thank you!

October 30th, 2015

Thanks to all of those who supported our C.Y.O. Children’s Fundraiser-Celebrity Dinner. You have mad[...]

C.Y.O. Children's Fundraiser - February 26, 2015

C.Y.O. Children’s Fundraiser – February 26, 2015

July 14th, 2014

Thank you to all of our guests, sponsors and community partners for making our 2014 fundraising dinn[...]

Celebrating 50 years of Camp Marydale

Celebrating 50 years of Camp Marydale

January 23rd, 2013

During 2013, the C.Y.O.’s Camp Marydale reach an incrediable milestone – 50 years!

Since 1963, Ca[...]

A letter from the Executive Director

Thank you for visiting our website, we encourage you to click through our site and check out the many programs and services our agency has available to serve the needs of children, teens and their families in our community.

The Catholic Youth Organization (C.Y.O.) is one of the oldest, strongest and most effective non-profit agencies in our community. Over the past 58 years, we have built our reputation on working with children, teens and their families of all faiths and providing them with Athletic Programs, Leadership Training and Outdoor Education and Recreation opportunities. Many of these programs are inclusive of children with disabilities and to those who are from financially disadvantaged households.