Finding subterranean water
by Naba
(Ana Rech, Rio Grande do Sul)
If you cant find water over the ground, you can seek it under. First, find a piece of wood in form of "Y". Hold it with the both hands, hanging the "arms" of the "Y" leaving the other side to the ground. Hands face up making a little enforcement to open the "Y". Walk around. When you find water, the piece of wood will start to move, line a pendulum.
It takes a little time to practice, but usually it works.
I know it looks weird, but the explanation is that our body can feel the waves of underground water, when you get over it you will make a unconscious movement which we can't see normally, but it reflects in the wood, so there is your water.