Implementation Of The Program &Amp;#8220;Open Schools&Amp;#8221; (Service For Organizing Children'S Daily Creative Activity Program) In School Units-School Complexes Of Our Municipality During The Summer Holidays, In Three (3) Periods Of Two (2) Weeks, From 16/06/2026 To 24/07/2026, For A Total Number Of Children Up To 1,540 Places, Aged From 6 To 12 Years To Cover The Needs Of The Department Of Lifelong Learning, Of The Directorate Of Childhood, Education &Amp; Lifelong Learning Of The Municipality Of Athens.