If you spend much time in upper Manhattan, you know it’s blessed with hundreds of acres of parkland, much of which serves to showcase the area’s naturally rugged terrain. To help bring attention to this sometimes overlooked resource while promoting public health, an organization called CLIMB (City Life is Moving Bodies), in conjunction with Creative Arts Workshops for Kids, hosts an event called Hike the Heights, an "urban safari" through parks from Morningside Heights to Inwood. Streetfilms correspondent Mark Read has the lowdown.