Go for a walk along the water's edge and get some fresh air at New York Harbor. It's always nice watching the boats coming and going.
This place for ships to anchor in United States of America comes recommended by many travelers, so leave a spot for it on your to-do list. However, your day doesn't end there. There are loads more places waiting for you to enjoy after New York Harbor. Statue of Liberty, Brooklyn Bridge, and Ellis Island are nearby.