Most people treading water

According to Official Guinness Records,

The most people treading water is 469 and was achieved by the Buffalo Triathlon (USA) in Buffalo, Minnesota, USA, on 2 June 2013.

For a complete list of 2013 records, please visit 2013 Guinness Records in United States.

Related Images

Other United States records that might interest you:

• Most people on a pub crawl
• Most people wearing wigs - single venue
• Largest robot dance
• Longest golf cart
• Largest motorcycle poker run (same start and end points)
• Longest ribbon cutting
• Most pine boards broken in freefall
• Most ping pong balls caught with chopsticks in one minute
• Fastest mile joggling with three objects - women
• Largest sand dollar
• Fastest time to arrange the first 25 rows of Pascal's triangle (human formation)
• Largest donation of used mobile phones in one week - multiple locations
• Weakest magnetic field measured