Using a $250,000 underwater drone, documentary filmmakers Yvonne Drebert and Zack Melnick are capturing footage from parts of the Great Lakes that are often too deep or remote to observe directly. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on TikTok: https://www.tiktok.com/@cbcnews Subscribe to CBC News on Snapchat: https://bit.ly/3leaWsr Subscribe to CBC News on WhatsApp:

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