If you are stopping at Port Stephens for the coffee or the Pelicans, there is lots to photograph. A visit to Mambo wetlands is worth it (not the least as there is a chance we are going to lose them), lots of beach / sunrise / sunset opportunities. More whale watching, either via one of the commercial operations (can recommend Imagine Cruises if you want to go out), or go to the headland at Boat Harbour to watch the humpbacks from the shore.