Commander Cousteau and his Calypso team explore the St-Lawrence River and the Great Lakes of Canada. They make some evaluation of what happened to this great water system in the last 400 years of intensive human occupation.... (Full plot summary below)
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Commander Cousteau and his Calypso team explore the St-Lawrence River and the Great Lakes of Canada. They make some evaluation of what happened to this great water system in the last 400 years of intensive human occupation.
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