There could even be a bitcoin house, of for better PR effect, there could be the travelling bitcoin group. To be environmental friendly, they should walk, run or use a bicycle. Then they could spread the bitcoin gospel everywhere, and they could make appointments with people who would help them out with supplies and housing during the trip.
They could have a website were they put films and stories about their adventures.
This is the approach I would take with a proper white-hat marketing campaign to boot.
~Bruno~