Longest human chain underwater

According to Official Guinness Records,

The longest human chain underwater consists of 386 people, and was achieved by Dixie Divers (USA) in Deerfield Beach, Florida, USA, on 16 June 2018.The event took place on Deerfield Beach following an annual beach clean up.

For a complete list of 2018 records, please visit 2018 Guinness Records in United States.

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