The Baie des Ha! Ha! is a particularly developed cove over a length of eleven kilometers on the Saguenay River in the region of Saguenay–Lac-Saint-Jean in Quebec, Canada. At the end of this natural corridor, which was originally called in French the "Grande Anse", then the "Grande Baie", there are the Ha! Ha! River and Rivière à Mars. According to the theory, this vast depression is the extension of the fault and collapse ditch of the Kenogami Lake which is located upstream less than twenty kilometers.