Hi there,
I'd hugely appreciate any advice on the below, I have done a lot of research online (although I realise you can never do enough!) but I thought I'd ask the experts before I take the plunge and book. Basically I have 6 months for a sabbatical from work / life and have come up with the following, from October 2015 to end March 2016:
UK to Cartagena - via Bogota) 2/3 weeks
fly to Peru (Lima, Cusco/Machu Picchu and Arequipa - via surface transport?) 3 weeks
Iguazu Falls 3/4 days
Buenos Aires 1/2 weeks
Rio de Janeiro 1 week
New Zealand (all over, travelling via surface transport) 5 weeks
Australia (Brisbane to Cairns - or vice-versa, via surface transport) 3 weeks
Bali 1 week
Thailand / S.E. Asia various (inc. Koh Samui, Cambodia, Vietnam - Saigon to Hanoi) travelling via surface transport from Bangkok, so around 2 months I think
Japan (Osaka, Kyoto and Tokyo) 1 week
My main question: is this way too much for only 6 months?! I think this is around 9 weeks in each 'continent'. But I'm worried I may miss something or be mostly rushing around, so considering dropping Colombia, or even Oz for example. So if anyone thinks there's something I simply shouldn't miss do let me know.
A bit about me: I'll be 30 by then, quite sociable but looking for a mixture of culture, the usual beach relaxation, some nightlife and viewing ancient / amazing sites like Angkor Wat. P.S. I don't drink and have no interest in drugs, so should save some money there! ;)
I've never done this before and trying to get out of my comfort zone (whilst having a pleasant time). Will stay in hostels and will be booking flights only with STA, then going with the flow generally.
Thank you in advance for any tips and advice from people who have been to these places , or maybe have done a 6 month RTW trip! If I haven't provided enough info do let me know.

