Here's a regatta with a difference – all of the boats are made out of beer cans. The annual event is held in (where else?) Australia. The Darwin Beer Can Regatta was started in 1974 as a way to clean up beer cans littering local streets. Competing craft must be made largely from recycled drinks containers (beer and soft drink cans, milk cartons and plastic bottles) and are not tested for seaworthiness before the race – sinking simply adds to the excitement.

darwin beer can regatta australia
Boats set off in the Darwin Beer Can Regatta at Mindil BeachHelen Orr/Getty Images
darwin beer can regatta australia
The 'Vikings' launch their longboat during the Darwin Beer Can RegattaHelen Orr/Getty Images
darwin beer can regatta australia
Owen Richards and Dan O'Driscoll get ready to launch their boat, made of XXXX cansHelen Orr/Getty Images
darwin beer can regatta australia
'The Mexicans' get ready to race at the Darwin Beer Can RegattaHelen Orr/Getty Images
darwin beer can regatta australia
'The Turds' try desperately not to sinkHelen Orr/Getty Images

This year race was won by a "collective of crazy women" representing Darwin's LGBT community, in a boat named 'Rosie' in honour of a member the community who died recently. Crew member Tracey Knighton told NT News: "We want people in the Northern Territory to see gay, lesbian and bi people are all here and all want the same things as everyone else — to get ahead in life and have a laugh and sail a beer can boat."

darwin beer can regatta australia
Rosie, a boat representing Darwin's LGBT community, wins the Beer Can Boat RaceHelen Orr/Getty Images
darwin beer can regatta australia
The 'Bogans' finish second in the Beer Can Boat RaceHelen Orr/Getty Images
darwin beer can regatta australia
The 'Pirates' compete during the Darwin Beer Can RegattaHelen Orr/Getty Images
darwin beer can regatta australia
Building boats for Darwin Beer Can Regatta is thirsty workHelen Orr/Getty Images
darwin beer can regatta australia
Sleeping off a few during the Darwin Beer Can RegattaHelen Orr/Getty Images

The event is run by the Lions Club and raises money for charity. Organisers estimate they have donated more than A$1.5m (£884,621) to charitable causes over the lifetime of the event, which sounds like a good reason to start emptying more beer cans.