The Chicago River, both natural and man-made, connects the Great Lakes to the Mississippi Valley waterways. The River is unique for many reasons, one being that it is dyed green every St. Patrick's Day. Also noteworthy because of its reverse flow, this modern engineering feat is known for its architectural boat tour. Accompanied by a knowledgable guide, this informative tour details the history and unique facts about the city, it's architecture, and how it all came to be.
