Looks like it was held by a guy in North Dakota...
// Hansen asked city officials to bear witness to the feat so that it would be recognized by Guinness World Records. The organization has not yet validated the results, according to the Washington Post, but it confirmed it would beat the current record for “longest journey by pumpkin boat” currently held by Rick Swenson, who traveled 25.5 miles (41.038 km) in Grand Forks, North Dakota, in 2016. //
I've heard pumpkins are popular in Australia...looking for something to do 1ozzy?