each camp has their own rules.... i'm sure they will have couselors staying in the cabins with you so i'd assume that if 13 of you were going, they would probabaly do something like 6 kids in one cabin + 1 or 2 counselors (for a total of 8 ppl in one cabin) and then 7 kids in another cabin + 1 or 2 counselors (For a total of 8 or 9 people in one cabin)......most likely they'll just divide you up evenly, to keep the cabins more roomy rather then jam 10 of you into one cabin, and have that one totally cramped up between all of your stuff, plus all of teh people, and then only 3 or 4 people in the other cabin, tha'd make no sense......usually you can request who you want in your cabin though, long as you ask.