8601 london to lagonegro(basilicata)

Hi

I Am Planning A Trip From London To Lagonegro (basilicata) In July This Year.

We(my Wife And A 4yr Old And 2yr Old) Are Driving. Crossing Over To Calais, Visiting A Friend In Southern France Then Crossing Over To Italy Into Piedmont To Visit Family, Then Visit Family In Milan, Family Again In Pisa And Then Through To Basilcata Via The West Highways. We Expect It To Be A 26 Day Round Trip And Will Stay At Hotels/b&b's Etc.

This Will Be The Biggest Trip We've Taken By Car And Was Looking For Any Advice Or Tips For The Road Trip Or Suggestions In Terms Of Places To Visit, Places To See Or Places To Stay On The Way.

Thankyou In Advance For Your Suggestions.