The 500m swim is open to 10 - 12 year olds .
The 500m swim follows a U shape course in front of the Mollymook Surf Life Saving Club at the beach 's south end .
The 500m swim is open to 10 - 12 year olds and follows a U shape course in front of the Mollymook Surf Life Saving Club at the beach 's south end .