This challenge was designed by the members of the 2nd Moira Trefoil Guild for their sister Trefoil Guild members, as a tool to help with activity planning. The Ontario Trefoil Challenge gives members the opportunity to explore, experience, learn, share and have fun through the sisterhood of Guiding. Challenge requirements: To start or finish the challenge, complete one or more activity per category below and share as many of these activities that you can, with girl and adult members.