One boy scout(eagle)from my small town attended - he phoned his dad early on saying he was having the best time of his life. He is going to be the den chief for my son’s bear den - hopefully he’ll tell us all about it.
Good for you and he. All the boys, and adults should get excited to hear all that he says. You may find these helpfull in telling the Den and the Pack about all that went on at the Jamboree http://eng.thejamboree.org/
An Eagle Scout who was a member of our Cub Scout Pack is there as well.