"Fiberglass Undies offers a sharp, focused 45-foot 5.10c sport climb on the limestone of Gardener's Wall, demanding precise footwork and attention to sharp holds. Perfect for those seeking a short but technical challenge in the Bow Valley."
Fiberglass Undies lives up to its quirky name with a climb that offers straightforward sport climbing on the rugged limestone faces of Gardener's Wall. This short, 45-foot route packs concentrated effort into a single pitch, where sharp holds demand careful hand placement and precise footwork. You’ll find yourself moving deliberately, negotiating pockets and edges that press into your skin just enough to keep your focus razor-sharp without spoiling the fun. The rock feels alive here—cold and slightly abrasive under your fingertips, a reminder that this corner of Bow Valley holds character beneath the quiet calm of the surrounding Grassi Lakes area.
The approach is a gentle wander from the well-marked trail at Grassi Lakes, taking less than 15 minutes through open forest with pine needles cushioning your steps and dappled sunlight breaking through the canopy. Gardener's Wall is an accessible destination for climbers looking to escape the crowds without sacrificing the quality of the limestone.
On Fiberglass Undies, eight well-spaced bolts provide secure protection, which makes it friendly for climbers who prefer sport routes but still crave technical moves. The 5.10c rating reflects a challenge that is firm but fair, requiring solid footwork and the ability to read slightly exposed sequences. The route doesn’t overstay its welcome, making it ideal for a focused session or a warm-up before exploring nearby lines.
Prepare for the sharp edges by opting for climbing shoes with a durable rubber edge and consider tapering your chalk application—it’s a route that rewards precision over brute strength. Early morning or late afternoon climbs are recommended when the sun is lower and the rock cooler, as the midday heat can make the limestone burn under your skin. After topping out, the descent is straightforward; a quick rappel or scramble leads back to the base without complication.
Fiberglass Undies may not be the flashiest line on Gardener’s Wall, but it holds a tight, honest challenge that blends Rocky Mountain climbing grit with accessible sport climbing flow. It’s a solid pick for those wanting an immediate test on iconic Alberta limestone within the stunning Bow Valley corridor.
Be mindful of the sharp holds that can cut into skin and climbing tape. Maintain control during clipping, as the bolt spacing encourages clean, confident moves. Avoid climbing in wet conditions, as limestone turns slippery when damp.
Wear shoes with durable rubber to handle the sharp limestone edges.
Climb early or late in the day to avoid overheating on the rock.
Approach trail is well-marked and takes approximately 15 minutes.
Chalk conservatively—holds can feel slick with over-application.
The route is protected by eight bolts and anchors, providing solid security throughout the short climb. Expect moderately spaced bolts that require good clip technique but no mandatory trad gear. Bring a quickdraw set to cover all placements comfortably.
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