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Don Walsh: The man who made the deepest ever dive
https://www.bbc.com/news/science-environment-67445718
The remarkable story of Captain Don Walsh and his 11km journey to the bottom of the Mariana Trench.
https://www.bbc.com/news/science-environment-67445718
The remarkable story of Captain Don Walsh and his 11km journey to the bottom of the Mariana Trench.