Heaviest boat pulled by a team of swimmers

According to Official Guinness Records,

The heaviest boat pulled by a team of swimmers is 323.2 metric tonnes (712,534 lb) and was achieved by SLRG Luzern (Switzerland) in Lucerne, Switzerland on 14 September 2013.
The event was organised to celebrate the 75 anniversary of SLRG Luzern, a lifeguard association made up of men, women and children of all ages. There was a team of 73 people who took a time of 4 minutes 34.72 seconds to pull the boat 100 metres. The boat itself was the Gallia, a 100 year old paddle-steamer permanently situated on Lake Lucerne.

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

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