Christchurch to Perth via a day trip to Sydney

So we managed to get out of Christchurch after our shaky night and our next stop was Sydney where we had the day to explore. Tim had never been to Sydney and as we were going via there thought it would be a great opportunity to spend the day there. Albeit we were exhausted after a sleepless night we did our best to keep busy. We checked our bags in for our return flight to Perth and just put a couple of small bags in a locker then caught the train into Circular Quay to see the Opera House and all the other sights. There was a massive cruise ship in the docks so that was an amazing sight and the Sydney Harbour bridge is amazing.  We spend a few hours around there then had a walk up Pitt street and had a look at the shops and then headed back to Circular quay.