Basically, there are two meeting points, one at Saturday noon to declare the equipment and one in the evening for the dinner. The rest is self-organized although I frequently bump into the others on the other days.
For the competition, some move in groups, some of their own, some obvious places attract groups, there were challenges where I didn't meet anyone during the two hours, there were others where I met the others all the time. In my view the best is to keep an open mind and react to what is coming.
Stefan