Chase Promenade (formerly Bank One Promenade) is an open-air, tree-lined pedestrian walkway that opened July 16, 2004. It is part of Millennium Park, which is located in the Loop community area of Chicago, Illinois in the United States. The Promenade was made possible by a gift from the Bank One Foundation. It is 8 acres (3.2 ha) and used for exhibitions, festivals and other family events as well as private rentals.