No worries! My undergrad was in geography (geomatics) with a 84% cumulative average or a 3.7. I did a fourth year honours thesis focused on GIS and health, worked as a research assistant and TA in some classes, participated in some extracurriculars mostly food banks or student ambassador related stuff, and did five co ops in government organizations. It's a smaller program and the application is still open until August 1st I believe so there's no harm in applying!