We had to pay the local “water man” to do this before getting our well drilled. It comes with the well drilling service. He first found water in a not so good spot of our garden. It was down a slope and we would have to pump the water not only out for the ground but also up to the house all the time. I let him search again in an area next to the house and he found a spot there too.
Not sure what to think about this, but we have a decent 80m deep well now and that’s what matters.
Alea iacta est ("The die has been cast")