More than 300 people have bared it all at the Pilwarren Maslin Beach Nude Games on South Australia's southern coast.

Hosted by the local nudist community, the event attracts people from around Australia to compete in a range of novelty sports including three-legged and sack races, as well as water balloon throwing.

Participants can also enter competitions to claim the title of Ms Maslin Beach or Best Bum on Show in either the 18 to 39, or 40 plus categories.

Games organiser David Pillar said the event's popularity had remained steady over the past few years.

"It attracts people from all around ... there are lots of other people who aren't usually part of the nudist community that come down for the games, we've got people flying in from interstate," he said.

The games have a 30-year history at Maslin Beach, making it one of the longest running nude events in the nation.

"It's a really good fun day, it's a great place to catch up and meet new people," Mr Pillar said.

"People come down here for different reasons, the nudist community itself is small, everybody knows everybody and we like to catch up once a year.

"Some people just come down because they are curious to see what it's like to be at a nude event."

Nude games survive council permit conditions

Doubt was cast on the future of the games late last year when the Onkaparinga Council acted to introduce a range of permit conditions.

"They wanted every competitor to fill in an entry form and for us to keep a spectator record which is an invasion of privacy," Mr Pillar said.

But organisers said they reached a compromise with the council that allowed this year's event to go ahead.

The event, originally called the Maslin Beach Nude Olympics, also had to change its name twice.

In 2013, the Australian Olympic Committee (AOC) told organisers they could not use the word Olympics in the title.

The event then took on the name Maslin Beach Nudo Lympics but the AOC was against that title as well.

"We weren't going to win that fight so we thought we would just change the name," Mr Pillar said.

Maslin Beach was proclaimed Australia's first legal nude beach by the State Government in 1974.