There is a ton to do in Lancaster that is child-friendly and affordable. The shul, Degel Israel, has minyonim every day (6:50 a.m. leining, 7:00 a.m. non-leining; shkiah-based at night) and moves at a very reasonable ba’al ha’batish pace (not rushed, not slow). In addition to Dutch Wonderland, which each person should investigate to determine whether it is appropriate for his/her family, there are farm tours, buggy rides, and various factory tours in the area. Lancaster County/Pennsylvania Dutch Country are search strings for google that can lead you to free published tour guides.