The Walkway Over the Hudson State Historic Park—a 19th century railroad bridge transformed into the world’s longest linear park—hosts a weekend full of running memories in New York State’s beautiful Mid-Hudson Valley. Runners of all abilities are invited to take part in one of four flat, fast and scenic races—a marathon, half-marathon, 5K, and the ThinkDIFFERENTLY Dash, a one-mile run for individuals with physical and developmental disabilities.