For example, Bowls, which I suspect to be the main ball game people play on the court in Victoria Park, is a game to roll a bigger ball (called bowl) in an attempt to stop closest to a smaller white bowl. The following you see is called Lawn Bowl.
Bocce is a similar sport with an Italian name, and the biggest difference is that it is played within a long court.
Image from web.mawebcenters.com
If you are better with a stick, maybe you should try Croquet. It's kind of like golf, but it takes a different kind of skills.
Image from croquetnc.org
If you want a much more exciting one, how about Sepak Takraw? A Malay-named sport that is also known as kick volleyball, native to Southeast Asia. I watched a little when I was in Singapore, not my real interest, but definitely crazily skilful!!
Resources:
http://en.wikipedia.org/wiki/Bowls
http://www.youtube.com/watch?v=V1EzBllupss&feature=related
http://en.wikipedia.org/wiki/Bocce
http://www.youtube.com/watch?v=-CP6ykzsK0M
http://en.wikipedia.org/wiki/Sepak_takraw
http://en.wikipedia.org/wiki/Ball_games http://en.wikipedia.org/wiki/Croquet
