It is a very family orientated location. The kids can go swimming at the man made beach or swim in the lagoon. Parents can sit back with a good book and enjoy some relaxation time in the sun or under the shelters provided. The beach has lifeguards who are there to monitor the crowd.
You can go to South Bank for a BBQ or a picnic - there are lots of facilities. There are plenty of walking tracks and bicycle paths for all the family to use as well. There are plenty of restaurants and cafes. A favourite of mine is to go to South Bank for a walk to get out and get an ice cream from Cold Rock Ice Creamery.
You can also ride the Wheel of Brisbane for a small price. The ride gives you an informed tourist guide of where things are situated and the history of that particular area while you enjoy the views.