Where's Waldo presents a compelling challenge on Entropy Wall, carving its presence on the rugged face of Old Baldy in Ontario South Bouldering and Rock. This single-pitch sport route, rated 5.10c, invites climbers into a sequence of dynamic moves packed with exposure and a tension that steadily rises as you ascend. Starting beneath a problem roof that tests strength and precision, you are quickly drawn into a tight dihedral that demands focus and body control amid the raw natural contours of the rock. As you push upward, the wall seems to dare you with increasingly technical sections, culminating in a tricky top-out move known to thwart even prepared onsight attempts. Climbers need a steady head and sharp technique here; the route’s name cheekily hints at the elusive nature of this crux.

The rock itself offers mostly reliable bolts and a secure anchor, though particular care is urged around the once firmly attached flake, now precariously detached and swaying inches from the wall. This element adds an unpredictable edge—like nature pressing its own test on your ascent. Exposure is a key part of the experience, giving you wide-open views that stretch over the rolling landscapes of southern Ontario, where forested slopes meet the horizon in calming green expanses.

Accessing Entropy Wall demands a moderate approach along rugged terrain beginning from clearly marked trails near Old Baldy. The journey up to the cliff is an experience in itself: the earth crunches underfoot, the forest breathes around you, and occasional bird calls punctuate the quiet. Warm days bring pleasant breezes that cool the effort, while early morning and late afternoon light cast dynamic shadows that accentuate the rock’s texture.

For climbers ready to tackle Where's Waldo, preparation is key. Favor solid footwear that grips well on mixed slab and vertical rock faces. Hydration and a balanced warm-up will set you up for handling the roof and dihedral’s physical demands. Timing climbs during late spring to early fall optimizes dry conditions and comfortable temperatures, avoiding the damp chill winter or muddy spring approaches can bring.

With a moderate star rating reflecting solid climbing quality and consistent protection, Where's Waldo sits as a decisive challenge for intermediate to strong sport climbers seeking to test technical skill fused with mental grit. The route strikes a thoughtful balance—rewarding those who move with both patience and power. Expect to leave with your climbing senses sharpened and a story of a slightly unpredictable piece of rock that refuses to be easily solved.