The Athletic Union is the body that supports all sporting activity at Cardiff University Students' Union. We support students that run over 67 sports clubs including individual and team sports, outdoor and water sports and martial arts.
There are 67 AU clubs ranging from American Football to Ultimate Frisbee. A full list can be viewed here.
You have to pay a basic fee (which is subject to change each year) to be a member of the AU. This fee covers insurance but once you've paid you're good to take part in as many clubs as you want. Each club has their own specific joining fee.
The AU also runs a number of recreational sporting leagues, including 11-a-side and 7-a-side football and netball, providing weekly fixtures for teams from your course, hall, or society. These are the Intra Mural Games.