Here is some video and audio that Donald Crowhurst recorded while out there on the ocean. It is sad to hear someone who is on a downward spiral like he was and being alone at sea with no one to help work out the situation that he placed himself in, it apparently drove the man mad, obviously.
https://youtu.be/kf9sZJV4N3s?si=SECIjCX0_grB3c1P
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