I spent the last week as staff member at Camp Quest, a week-long summer camp aimed at the children of atheists, agnostics, and other varieties of non-believers. The experience was all varieties of nifty due to a fantastic assortment of staff, kids, and programs.
A good article about the camp is Camp: "It's Beyond Belief", the somewhat awful subtitle and inaccurate statement that we teach children that there is no god not withstanding.