How do you geo-target without wasting the budget?

The radius is the trip people actually make: the neighbourhood, the town or the minutes to the door, not the whole region. It is wasted when the ad is shown to someone who will not come up to the sierra or cross the city. Draw where bookings from recent weeks came from, not where you wish they came from. Exclude what falls outside that map. A Galapagar venue advertises across the whole province. It pays for clicks from people who eat in their own neighbourhood and do not travel. The radius saved on the campaign and the list of excluded areas, with a screenshot of the map. A week later you check whether the calls come from that circle.