Last year they did the trick-or-treating here on base and they also had a contest for the cutest costume, as well as several stands with free goodies and food. I am not sure if they will do the same this year, but I am sure that it will be on Panorama. Our daughter was 4 last year and had a blast going trick-or-treating from building to building. I am sure your son will have a grea time as well. :)