Rock Guiding & Courses

Leslie Timms is the founder of On the Rocks, a rock climbing guiding and education service based out of the Beaver Valley in Ontario, Canada. After 12 rewarding years of climbing professionally, Leslie stepped down from guiding and sold On the Rocks to Will Gilbert in 2020.  

 On the Rocks still offers climbing courses and adventures on the Niagara Escarpment, with certified guides.

or see what we've been up to on facebook