I've never been to South America before and was wondering how on earth to get up to Mexico city from Rio! I had a friend who came down from Mexico city all the way to Columbia and he said just local buses and stuff. I can understand that in central America but would that happen from Rio as well! Big country I have to remember. bit of a wimp traveller! Anyone help? Put my mind at rest!
Depending on your time I believe if you want to enjoy South America you have to fly between Capital Cities "then" explore by bus from them and you could do that from Rio upto Columbia via ???????????
You have to fly Columbia to Panama as their is no overland route THEN you would use ordinary bus's or www.ticabus.com to travel upto Mex which is a fabulus enspiring trip that you dont want to end,jump on appox 0800,jump off appox 1200,(4hrs max),dump kit in hostel/hotel and out siteseeing or beachbuming by 1300 and time stops still!!
Have a great fun trip and enjoy your travels.
al de bes