The camps aim to indoctrinate Yemeni children and prepare them to fight on the front lines, observers say.
The boys, who had been fighting for the Houthis, will take part in a rehabilitation programme before being returned to their families.
The province has stepped up its activities in the summer months that engage youth and steer them away from violence and the lure of extremist thought.
Modeled on similar celebrations held by Hizbullah and Iran, the event encourages Yemeni youth to join the militia by aggrandizing martyrs.
The IRGC has been surreptitiously recruiting Iraqi youth to fight in areas of regional conflict such as Syria and Yemen, Iraqi observers say.
National Youth Conferences seek to integrate Egyptian youth into public life by engaging them in the decision-making process.
Leading clerics say there are no religious grounds for sending children into battle and reject the party's militarisation of the Shia community.
Close to half a million children are suffering from malnutrition, while others suffer from poverty, illness, displacement and social ills.
University students say insecurity and uncertainty about their futures drive many of them to seek employment abroad and contribute to rising extremism among youth.
A storytelling project organised by a Lebanese nonprofit and UNICEF aims to help participants recognise the destructiveness of sectarianism.