You may be fortunate and make some successful hits with very little experience and preparation. You will soon discover however, that a lot of practice is necessary if you wish to have consistent results. The ASD calls your attention to this fact and underscores its desire to help you achieve a high standard of comptence. Dowsing for water is an important application of dowsing, however dowsing is not limited to water, search or location. The applications are endless.
Map dowsing is another of the applications.
Map dowsing is best pereformed not with Y or L rods but with a pendulum. The pendulum will supply the answer. Note that in the act of map dowsing, the dowser has trancended the limitations of space. The map can represent a property in a neighboring country or in a country halfway around the globe. Yes there are several.