We want to be with the whole family group and apart from it at the same time. Letters are the magic fink that allows you to do just that. Your kids can smirk about another one of your culinary experiments from the safety of the mess hall. You can sympathize with campers who have had a hard time getting up in the morning when you aren't trying to rouse them. The key here is, of course, that not only do the letters have to be written and sent they have to be interesting.
M ake no promises.
Don't promise them they'll have a great time, don't promise that you'll write everyday. Make no predictions whatsoever. Let them discover what camp is all about. A summer odyssey at camp is a chance for kids to experiment. They'll have both success and failure and their letters will relate what they are learning.