Liu and family taking advantage of the natural wonders of the West Coast. Hiking at Tilden Park (top left), Yosemite Upper Fall (top right), and Redwood Regional Park. (Courtesy H. Liu.)

Liu and family taking advantage of the natural wonders of the West Coast. Hiking at Tilden Park (top left), Yosemite Upper Fall (top right), and Redwood Regional Park. (Courtesy H. Liu.)