Hamilton Heights is a neighborhood in the northern part of Manhattan, bordering the Hudson River on one side and Upper Manhattan on the other. Most of the river bank that borders Hamilton Heights is devoted to park that you can enjoy with your dog. At the other side of Hamilton Heights, St. Nicholas Park also provides a nice place for you to walk around together under plenty of tree cover.
Homes in Hamilton Heights are generally apartment buildings that are close together. The architecture of these buildings is lovely, with lots of bay windows and charming pavilions, but the yards, if they exist, are small and fenced, and there is no divider between sidewalk and road. You'll generally find yourself walking your dog close to your side throughout most of Hamilton Heights. To walk him on a loose leash and enjoy bicycling, rollerblading, or skateboarding, look out for River Park away from the usual neighborhood streets.
Hamilton Heights very much feels like Manhattan walking, with buildings pushing close up on the sidewalk and lots of pedestrian and vehicular traffic. While this is an attractive place to walk with your dog, you will not be able to let her be on as free as she'd like to be, or be on wheels with her in most of this neighborhood. Riverside Drive provides an extended sidewalk that is divided from the street and does not have much intersecting traffic, so this is a good place to use for those activities. There is even a little fenced dog park here, where you can let your dog play off-leash with her friends for awhile.
Riverbank State Park offers lots of walking trails along the river underneath attractive tree cover and lovely landscaping. Open grassy areas provide you and your dog a place to play fetch or frisbee while enjoying the cooling freezes from the river.
While Hamilton Heights is very much in the city, there is lots of green space available in this area where you can get away from the tight city streets. Riverbank Park provides lots of pleasant places to explore trails in the shade and offers fields to wander into if you want to drift off the trail.
While this park is too well maintained to be home to lots of wildlife, there still will be a fair amount of wild things for you and your dog to see here. At the part of the riverbank where it is rocky and some natural tree cover is allowed to run up to the water, you have a great chance of seeing all kinds of water birds, especially wading birds like egrets and herons. You may also see a variety of songbirds and catch a glimpse of a hawk or peregrine falcon that has come to feed on the pigeons and squirrels of the park.