The 1st of my 3 favorite walks to discover New York when you are a first-comer.
A 4 miles walk with a cable car ride over the East River in between the 2 parts.
A 3 miles walk to see some landmarks of Midtown and other more secret places.
A 4 miles walk off the beaten path with several variations possible.
This map tells you approximatively where the walks are; you’ll find more details and links to them when you open the post.