Walkers and their four-legged friends walk to benefit homeless pets at 7 a.m., Saturday, Sept. 28; $25. Proceeds benefit the Humane Society of Southern Arizona. Registrants receive a T-shirt, a collapsible water bottle and a bandana for their dog, if present. Vendors and a photo booth also are featured. Call 321-3704, ext. 188, or visit hssaz.org to register and for more information.