Missisquoi Bay is a large extension in the northern part of Lake Champlain, at the East of the output of the latter in Richelieu River. It takes the form of a violin head, with the neck extending from the head of the lake and is about 5 kilometres (3.1 mi) in diameter. The bay is divided between Quebec in Canada and Vermont in the United States. The main town on its banks is Venise-en-Québec, a major summer resort. The river of the same name flows into the bay and the Missisquoi National Wildlife Refuge is located on the American side.