DARWIN, AUSTRALIA - JULY 09: Boats compete in the Beer Can boat race during the Darwin Beer Can Regatta at Mindil Beach on July 9, 2017 in Darwin, Australia. The annual event first started in 1974 as a way to clean up beer cans littering local streets. The all-day event includes boat races alongside thong throwing and sandcastle competitions. (Photo by Helen Orr/Getty Images)