I am going on a tour of Europe for my High School Graduation in the Spring/Summer with my dad. The countries I would like to go to include England, France, Germany, Switzerland, Austria and possibly Italy (Listed by priority). I need a tour that is good for all ages as I am 18 and my father is in his 50s. I would like to go for between 15-22 days so please let me know if you know of any good guided tour groups and if you have been, please leave your review! Thanks!!!