I am intending on travelling to Tokyo in late September and then heading to Osaka. Do I need to book the train travel whilst booking my Japan trip from Sydney or can I book it in Tokyo for 3 adults ? Also what travel pass do I need if I going to do things in Tokyo ie Disneyland and other iconic places to see. Do I need to buy the travel pass in Sydney or can I buy it in Tokyo and also for Osaka. As someone at work told me that it's cheaper to buy it in Sydney and more expensive if purchased in Japan.