WE OFFER THE HIGHEST QUALITY OUTDOOR ROCK CLIMBING COURSES IN ONTARIO
It's the On the Rocks mission to help climbers of all ages, skill levels, and abilities learn how to safely and confidently enjoy all styles of rock climbing, while having an awesome time. Leslie Timms, Owner and Head Guide, is a fully accredited PCGI Lead Guide and approved PCGI Mentor, as well as an accomplished professional rock climber. On the Rocks is a team of passionate rock climbers and certified guides, keen to share years of experience with those keen to learn.
Safety is always our #1 priority and that is why On the Rocks strictly hires Certified Guides, teaching the most current and efficient rock climbing techniques available.
Good times On the Rocks!
We are based out of Thornbury, Ontario (where On the Rocks was born), and our team of certified Single Pitch Guides offer guided adventures and courses at Rattlesnake Point and the Beaver Valley crags (Metcalfe Rock, The Swamp, etc).
We are open from May 1st through October, but we can squeak in some earlier/latertrips and courses if weather permits.
Please do not hesitate to inquire about custom locations/courses!
Certified PCGI Lead Guide
Approved PCGI SPG Course Provider/Examiner
PCGI Multi-Pitch Guide Course
Wilderness First Responder
Algonquin Outdoor Adventure Program Graduate
Outdoor Climbing Accomplishments:
Redpointed sport routes up to 5.13d
Onsighted sport routes up to 5.13b
Redpointed traditional routes up to 5.13b
Onsighted traditional routes up to 5.12a
Bouldered up to V10
First Ascents: Above the Clouds 5.13b (mixed), Stratus Fear 5.12d (trad), Arrested Development 5.13a (sport), Cottage Crack 5.12 (trad mix), Shark Week 5.12+ (sport), Ripple Effect 5.12c (sport), Whoopee Cushion 5.12c (sport), Fortune Teller 5.12b, Black Finch 5.12 (sport), Fear of Commitment 5.12 (sport), Stihl Your Face 5.12 (sport), Weekday Warrior 5.11a (sport), Decade 5.11a (sport).
Leslie has been an aspiring guide and adventurer for most of her life. Her passion for epic adventures started with a love for canoe tripping after months of summer outdoor education training in high school. She was then accepted into the Outdoor Adventure Program at Algonquin College, one of the top outdoor education programs in Canada.
During her years at college she discovered rock climbing and after graduating at the top of her class, Leslie hit the road to begin her career as a climber. Leslie has since climbed difficult boulders, sport routes and traditional cracks all over the world. She has developed new routes on the Niagara Escarpment, and given back through countless hours of climbing access, education, community initiatives.
After falling in love with the Beaver Valley on a climbing trip after college, Leslie moved to Thornbury, Ontario to be close to the rocks. She has since established and climbed several difficult traditional and sport routes in Ontario, including the First Ascent of Above the Clouds 5.13 trad/mix at Lions Head.
Leslie is a certified PCGI Lead Guide with Professional Climbing Guide Institute and also an approved PCGI Mentor, approved to certify other PCGI Guides across Canada and the US. She has guided and taught rock clinics all over North America, and at festivals like the Arc'teryx Climbing Academy in Squamish and Red Rock Rendezvous in Las Vegas. On the Rocks is Leslie's vision of collaborating with other passionate certified guides to provide the absolute best climbing courses and experiences on the Niagara Escarpment.
Certified PCGI Single Pitch Guide
Wilderness First Responder
I started rock climbing more than 12 years ago on the Niagara Escarpment, and since that time I've travelled to climb every year, visiting many areas in North America, as well as Japan and recently Europe. My favourite climbing area is Red Rock Canyon outside Las Vegas, for the scenic beauty and variety. While I started climbing using traditional protection and climbing mostly cracks, I love all the different types of climbing, from bouldering to sport to multi-pitch trad, and even ice climbing and alpinism. The focus and excitement in climbing is something special, and something I love to share. It makes me happy to see someone I've introduced to the sport or taught achieve their goals and get excited to climb! I look forward to getting out and climbing with you!