In Luling Texas USA every June people celebrate the Watermelon Thump .
More than 30000 people come every year to see the contest for the largest watermelon .
Each year the locals send the record watermelon to famous Americans .
There is also a watermelon carving contest .
The only rule is that whatever you carve needs to fit on the head as a hat .
People can also see the seed spitting contest and taste delicious watermelon products .
Every year people crown a watermelon queen to ride in the parade .