Sun on your face, dust in your hair, a heady whiff of adventure-and somebody else to do all the driving. If you're keen to tick off some of the continent's highlights and have a couple of weeks or more to spare, there's a lot to be said for travelling by overland truck. How much you'll be roughing it depends on the trip you choose, but one thing's pretty certain-you'll end up getting to know your co-travelers very well. Clive Grylls takes a big gulp of team spirit and gets ready to muck in...
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