Lake Cowichan (Nitinaht: ʕaʔk̓ʷaq c̓uubaʕsaʔtx̣), (pop. 2,974), is a town located on the east end of Cowichan Lake and, by highway, is 27 kilometres (17 mi) west of Duncan, British Columbia. The town of Lake Cowichan was incorporated in 1944. The Cowichan River flows through the middle of the town. Cowichan Lake is British Columbia's second-most pristine lake and Cowichan River is designated as a Heritage River.Lake Cowichan is at the western end of the Trans Canada Trail, which, when completed, will be one of the longest trail networks in the world at almost 24,000 kilometres (15,000 mi) length. Youbou, with a population of about 1,000 people; Mesachie Lake, British Columbia with a population of about 800 people; and Honeymoon Bay with a population of about 600 people are three nearby communities of Lake Cowichan.
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