Blüdhaven

"Where will you go?" "I don’t know. Upstate. Blüdhaven, maybe."

- Batman and Catwoman

Blüdhaven is a city near Gotham City, located upstate.

Catwoman' destination
While thinking to one of her destination after leaving Gotham, Selina Kyle mentions Blüdhaven as one of her possible choices.

Behind the scenes

 * Blüdhaven is a city usually depicted as being geographically close to Gotham City. It is where the hero Nightwing mainly operates.