Runaway Bride Easter Egg - Camp What?

There is a scene in Runaway Bride where Julia Roberts talks to "Peggy" about her husband. Peggy asked Julia to make a platypus face, and Julia said that it's only funny in a Camp Birchwood kind of way. Julia Roberts used to attend her uncle's camp, Camp Birchwood, when she was a girl. Her cousins still run the camp in Minnesota today.