Most people treading water (multiple venues)

According to Official Guinness Records,

The most people treading water in multiple locations was achieved by 805 participants in an event organised by the municipality De Wolden around the Netherlands, on 1 July 2009.
Participants per locations:
1. 317 people
2. 169 people
3. 319 people

For a complete list of 2009 records, please visit 2009 Guinness Records in Netherlands.

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