Hi Alroumi !
From Theoule sur Mer to St.Croix du Verdon, Two hours.
Get the A8 at Mandelieu and out at Le Muy, direction Draguignan.
Before Draguignan, a Trans En Provence, going direction Flayosc.
After Flayosc, passed Salernes,Sillans la Cascade,Fox Ampoux,Montmeyan and Quinson.
After Quinson you entry at "Plateau de Valensole", zone of culture Lavande: route long 15 km .
End of this route, deviation to Riez (left) or St.Croix du Verdon (right).
You turn right, more 8 km and you arrival at St.Croix.
Lavande is end at July , time is pressed...
good promenade