Michel Siffre
French cave explorer
- Born
- 3 January 1939, Nice
- Died
- 25 August 2024, aged 85
- Birth name
- Michel Augustin Francis Siffre
Michel Augustin Francis Siffre (3 January 1939 – 25 August 2024) was a French geologist, speleologist and underground explorer. He is especially known for the chronobiology experiments he conducted on himself.
Michel Siffre’s social media accounts
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