When visitors step off the city block into this Hudson River park, they get a welcome respite from the hard concrete reality of urban life. In contrast to the manmade world, Riverdale Park offers its neighborhood natural wonders that delight all five senses. From the sight of brightly plumed birds to the feel of five species of tree bark to the muted sound of a river's flow, Riverdale Park is a spot waiting to be discovered and prized.