Travel insurance is highly recommended
Due to the size of the island a self drive option will give you the most freedom to explore. Hire cars are available at the airport and the ferry docking area at Penneshaw through Hertz and Budget car hire. It is highly recommended that you pre-book your vehicle. Cars can also be brought across from the mainland on the ferry.
A coach connection is available from Adelaide to Cape Jervis and can be made when booking your passage over by sea. A shuttle bus runs between Penneshaw, American River and Kingscote. A shuttle bus service is also available from the airport to Kingscote, however you need to book this in advance.