The summer break is a great time for young men to be working on the Duty to God award. While your sons may be busy working a summer job, attending camp, or just hanging out with friends, they will still have some extra time to accomplish a few of the goals in the Duty to God booklets.
Each of the different levels has hiking and camping activities to be completed by the boys. You can most likely have your son pass these off when he goes camping with the Boy Scout troop. Your son might not be aware that he is passing off two requirements at the same time, so it pays to stay on top of this.
The Deacons are asked to visit a government office and learn what happens there during the day. The Teachers are supposed to attend a court session to learn about the proceedings that happen there. Summer is an excellent time to pass of these requirements, since these buildings are usually only open while your son is in school. One option for the Priests is to visit a nursing home on a regular basis and get to know the residents. The summer time is an excellent chance to begin this goal, because it is easier to fit the visits into his schedule. Priests also have the option of completing job applications and a practice interview. This would go along with finding a summer job.
If you look at the requirements for your son, you should be able to pick out several activities he can complete this summer. The school year can be a hectic time, especially if you have a large family. It is a good idea to take advantage of the quieter summer months. The requirements for the Deacons, Teachers, and Priests are available online.