1 / 4   Thousands have packed the banks of the Yarra River in Melbourne, Australia, for the Moomba Festival's most popular attraction, the annual Birdman Rally, on March 10, 2019. /VCG Photo

2 / 4   Clinging onto an assortment of homemade aircraft with cardboard wings and balloons, sixteen competitors have donned their most extravagant flying gear to compete. /VCG Photo

3 / 4   One of this year’s more creative competitors dressed as a character from the Disney Pixar movie “Up”. /VCG Photo

4 / 4   The Birdman Rally tradition dates back to 1976. /VCG Photo