When a hockey club set in a South Auckland suburb produces four Olympians in one campaign you can't help but wonder what goes on behind its gates.
Southern Districts Hockey Club in Papatoetoe is the home of five Black Sticks: Dean Couzins, Simon Child, sisters Samantha Harrison and Charlotte Harrison, all of whom are in the Olympic squads heading for London, and Marcus Child.
Couzins captains the men's national team, which is the most experienced hockey squad New Zealand has ever fielded.
Couzins himself has almost 300 caps under his belt, while Simon Child and Charlotte Harrison head towards 200.
Rick Child, chairman of Southern Districts club, which is celebrating its 85th jubilee this year, says there are several key ingredients to the club's secret formula for producing star players.