Going on this trip soon and wondering when on the group trips what type of bag is best to carry? Should I use a backpack for the water bottle, jacket, purse, and camera, or is there a bus or van that I can leave those things in when stopping to see various sights and consequently take something smaller? Is a sling bag (glorified fanny pack) too small or just right? My experience is with river cruising in which there was a bus we could leave various things on when stopping for a particular sight. Will it be the same for the AUS/NZ day trips?
