How Do You Support A Crew Of Bikers?S

This weekend I'm going to support a group of friends who are biking a large chunk of the Blue Ridge Mountain Parkway by driving the support vehicle. In this case, a lovely Nissan Quest I borrowed from Nissan. I know how to drive, but I don't know anything about bicyclists. What do I need to do?

Here are my biggest questions:

  • Do I drive ahead of them, behind them, with them?
  • What do I need to bring?
  • How often should I laugh at them because they're tired and I'm in a van?
  • Why are they biking this far when they can drive?

Ok, thanks.