driving in the Eastern Suburbs (ie Coogee and Bondi) is a nightmare. And unless there is parking included in your accomm it will be very difficult to drive. Driving to and from Bondi train station would be near impossible. Cronulla has station right there plus a mall area which is pedestrians only. its an hr on the train to the city. I cant think of any tourist/ cabin parks on the beach in Syd, unless you go right up Northern beaches, but then, access to the city would be terrible (no trains etc). another option would be to get an apartment right in the city (ie: Quest, DArling Harbour), and train it out to Bondi if you want to go to the beach there. If you stay in the city you can walk everywhere.