My suggestion would be a trip worthy of an outstanding trip report that would include all six continents...

...ah — what the heck. Include Antarctica too. Call it The Trip Report to End All Trip Reports.

Attendees who are based in each location could be assigned planning that part of the event.

My experience includes co-organizing the Delta Air Lines FlyerTalk Events of 2009 and 2010. We called it the Best. Field. Trip. Ever!

This is the Trip Reports forum with veteran travelers. Up this thing several notches. Surely this can take the title of Best. Field. Trip. Ever!