With these Dolphin watching Sydney tours, spend a day at Port Stephens, Australia's "Dolphin Capital." Ride through Sydney's lovely Northern Suburbs, then board a catamaran at Port Stephens and cruise the seas searching for humpback whales and bottlenose dolphins. Add a 4WD trip, or try sandboarding on the dunes at Stockton Beach if you want. Before returning to Sydney, pay a visit to a nearby winery and a brewery.