Largest underwater human pyramid had 62 people
The largest underwater human pyramid consists of 62 participants and was formed in Koh Tao, Thailand on October 15, 2013, according to the Guinness World Records. The formation was organised by Tyler Reiser and Manolo Cabasal from America and Australian John Shaddick. Qualifications for the record include that the pyramid be completely underwater and lasts a total of 30 seconds.