Solo on a classic adventurous grade 3 scramble on the big, rambling west face of Tryfan. Wrinkled Tower has a reputation for difficulty and exposure, and is often (sensibly) treated as a roped rock climb. Only more competent climbers should consider going rope-free, as this short film makes fairly obvious. The vid gives a good flavour of the route, and though the headcam sequences are a bit hard to watch (when aren't they, in mountain films?), it's a creditable filming job for a solo scrambler.