Make sure your children understand they have to be responsible and well behaved.Actually communicate that to them, and tell them they have your respect and trust, and that it is a responsibility. They will need to stay close, keep and open mind, be respectful, be watchful, look out for each other, and be prepared. It should be a lot of fun. Are they excited for the trip? If they are, I think everything will work out fine. But sometimes kids are not interested in leaving their friends and games behind, and don't yet understand the opportunity to learn that travel represents. Be sure to show them there is more than their backyard. It opens their eyes. Travel really helped me understand the world and mature at a young age.