Originally Posted by Jean Beetham Smith

How about making it a race. Suppose you start with a water bottle with a note pad and pen in it. The starter notes their name and starting point, date & time. They hand off to the next person, who signs on. Recognition could go to the first "team" to cross a continent, the fastest crossing, the longest crossing, the biggest team, first team to cross the equator, etc. I think we would have to agree that it would be OK to be on more than one team, since it is all very informal, you would need to hedge your bets about crossing even the continent.