Well unless I am going mad I just put in July - August into the search engine and 27 holidays appeared I clicked on about 5 which were all going in August, which is when I believe the main school holidays are, and the range was from Paris to artic summer, so let's hope one of these tours fits the bill.
I agree with Bob with his explanation, that is what JY usually reply, they might be able to confirm any newer information, this subject, and regional departures and age range must be the top 3 questions..
Good luck
Cindy