Feature photo/Photo above: lululemon athletica Want to get your ass moving? Raise money for charity? Nancy Harder rounds up 50 walk, bike, run events. Whether you’re a hardcore biker or curious about walking a 5k, here are 50 charity events around the globe that’ll up your mojo and tone your quads. WALK Alzheimers 1. Alzheimer Association’s Memory Walk (US) Memory Walk is the US’s largest nationwide walk to raise funds and awareness for Alzheimers. Arthritis 2. Arthritis Foundation Walk (US) Funds raised help find a cure for the most common source of disability in America.