German spent four months underwater and set a world record (video).

German aerospace engineer Rüdiger Koch set a world record for the longest underwater stay without decompression. He spent 120 days in the Caribbean Sea living in an underwater capsule of 30 square meters at a depth of 11 meters.

This was confirmed by a Guinness World Records judge, who stated that Koch surpassed the previous record set by American Joseph Dituri, who spent 100 days in an underwater house in a Florida lagoon.

Koch described his stay in the capsule as 'a wonderful adventure' and is satisfied with the Time spent there. After setting the record, he popped the champagne and smoked a cigar before emerging from the Caribbean Sea. He was picked up by a boat and taken to shore for a celebration.

Koch's capsule was located a 15-minute boat ride from the northern coast of Panama. It was equipped with everything necessary for comfortable living - a bed, a toilet, a television, a computer, internet, and even an exercise bike. The capsule was connected to an above-water chamber via a tube through which food was delivered and visitors, including a doctor, were allowed in. There were solar panels on the surface providing electricity, as well as a backup generator. However, there was no shower in the capsule.

German aerospace engineer, 59-year-old Rüdiger Koch, spent four months in the Caribbean Sea and set a world record for the longest underwater stay without decompression. The man lived in a 30 square meter underwater capsule that was submerged at a depth of 11 meters. pic.twitter.com/VxbdEQS0zc

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Rüdiger Koch hopes that his experiment will change the perception of the possibilities of human life and places where people can live. He believes that the seas are a viable environment for human expansion.

During his stay in the capsule, Koch's movements were monitored, and his daily life was recorded while following his mental health. The proof of his achievement was that he never surfaced.

Recently, Polish Lukasz Szpunar, known as the Ice King, set a Guinness record by spending two hours submerged up to his neck in snow wearing minimal clothing. Now the record for the duration of full body contact with snow also belongs to Szpunar.