Cambodia to Thailand - The worst bus journey imaginable

Well I am about to embark on a trip which is the first of its kind for me, I am taking time out from the UK to go and discover countries I have never visited before. I'l be starting in Oz, Perth-Sydney-Cairnes-Brisbain, the to NZ, Christchurch-Auckland, Fiji, Bali, Thailand, Vietnam, Cambodia. To keep track of my travels keep logged on!