On the Rocks offers the highest quality outdoor rock climbing courses and adventures in Ontario. Leslie Timms, Owner and Head Guide, is not only a fully accredited PCGI Lead Guide and Mentor, she is also recognized as one of the top female climbers in Canada. As a graduate of the Outdoor Adventure Program at Algonquin College, she's an exceptional outdoor educator and an experienced guide with extensive knowledge of rock climbing in Ontario and across the globe. Learn from the top guides in the industry! Fully insured custom climbing courses for all ages and skill levels! Course offerings include: Intro to Climb, Rappelling, Anchor Building, Sport Leading, Traditional Climbing, Multi-Pitch, Rescue, Technique Coaching, Unique Workshops, Guided Adventures Across North America, and much more!


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