North Delta Junior Australian Football League was started in 2003 by Mike Macfarlane. Mike was coaching a boys' soccer team at the time, and asked the kids if they would like to learn how to play Australian Football. The kids loved it, so Mike decided to put together this league, and it's been growing leaps and bounds ever since.

From Wikipedia:
Australian rules football, also known as Australian football, Aussie rules, or simply "football" or "footy" is a code of football played with a prolate spheroid ball, on large oval shaped fields (cricket fields), with four posts at each end. The inner pair of posts on each end are known as the goal posts, while the outer posts are known as the behind posts. No more than 18 players of each team are permitted to be on the field at any time, with four interchange players on the bench, and the primary aim of the game is to score by kicking the ball between the posts. The winner is the team who has the higher total score by the end of the match.