Camp NaNoWriMo (Camp NaNo) is an officially organized summer WriMo with an adult site all its own. It is also held unofficially but with moderatorial assitance on the YWP.
Camp NaNoWriMo was officially launched in the summer of 2012 and has continued since then. The months in which it is offered have been different in 2012 and 2013.
The Camp NaNoWriMo website is very minimal and does not even have forums. In the words of Jezra-of-the-OLL , it is much easier to manage and run because of this.
Camp NaNo on YWPEdit
There is no Camp NaNoWriMo YWP. However, during the summer the regular YWP moderators put up forums specifically designed for Camp NaNoWriMo and many young writers participate, adorning their signatures with charts depicting how many words they have written.